Acrylic Acid And Derivatives Patents (Class 424/487)
  • Patent number: 8663688
    Abstract: Semisolid mucoadhesive formulations for vaginal application, with improved technical and organoleptic characteristics, which contain at least two bioadhesive gelling polymers and an active ingredient, useful in the prevention and/or treatment of various pathologies and disorders in human beings or animals.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: March 4, 2014
    Assignee: ITF Research Pharma, S.L.U.
    Inventors: Álvaro Acebrón Fernández, Ana Campuzano Garcia, Rosa Maria Hernández Martin, Manuela Igatúa Olaechea, José Luis Pedraz Muñoz, Alicia Rodriguez Gascón
  • Patent number: 8663689
    Abstract: A bioadherent substrate includes a medical gel or medical gel precursor having a plurality of reactive members of a specific binding pair attached on or adapted to be attached to a surface of the medical gel, said reactive members being capable of forming covalent bonds with a plurality of complementary reactive members of the specific binding pair via a reaction selected from a Huisgen cycloaddition reaction, a Diels-Alder reaction and a thiol-ene reaction.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: March 4, 2014
    Assignee: Sofradim Production
    Inventors: Sebastien Ladet, Philippe Gravagna
  • Patent number: 8663687
    Abstract: The invention relates to the film products and methods of their preparation that demonstrate a non-self-aggregating uniform heterogeneity. Desirably, the films disintegrate in water and may be formed by a controlled drying process, or other process that maintains the required uniformity of the film. Desirably, the films contain at least one active agent, which may be administered to a user topically, transmucosally, vaginally, ocularly, aurally, nasally, transdermally or orally.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: March 4, 2014
    Assignee: MonoSol Rx, LLC
    Inventors: Garry L. Myers, Richard C. Fuisz
  • Patent number: 8658207
    Abstract: The present invention provides pharmaceutical release systems comprising an therapeutically effective amount of flibanserin and at least one pharmaceutically acceptable excipient, characterized in that said pharmaceutical release systems exhibit a pharmacokinetic profile that is characterized by an average maximum flibanserin plasma concentration Cmax lower than 300 ng/mL, preferably lower than 200 ng/mL after administration of a single dose to healthy volunteers in fasted state or directly after a meal.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: February 25, 2014
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Wolfram Eisenreich, Thomas Friedl, Florian Sommer, Nantharat Pearnchob, Karl G. Wagner
  • Patent number: 8658146
    Abstract: The present invention relates to a water-absorbing composition comprising water-absorbing polymer structures, on the surface of which is at least one tannin fraction which has a number-average molecular weight, determined in accordance with the test method described herein, of at least 1,000 g/mol, which has a weight-average molecular weight, determined in accordance with the test method described herein, of at least 1,000 g/mol, or which is a hydrolysable gallotannin. The present invention also relates to a process for the preparation of a water-absorbing composition, the water-absorbing composition obtainable by this process, a composite, a process for the production of a composite, the composite obtainable by this process, chemical products, such as, for example, hygiene articles, the use of a water-absorbing composition or of a composite and the use of a tannin fraction.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: February 25, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Franck Furno, Laurent Wattebled, Anne Ix-Mund, Harald Schmidt, Markus Henn, Jorg Harren
  • Patent number: 8658711
    Abstract: Methods for synthesizing a methacrylate-derivatized type-I collagen in which methacrylic acid is reacted with a carboxylic acid activating reagent in the presence of a carbodiimide to form a methacrylic acid with an activated carboxylic acid group, which is then reacted with free amino groups on type-I collagen to form a collagen methacrylamide. Methacrylate-derivatized collagen, cross-linked collagens formed therefrom and products containing the cross-linked collagen are also disclosed.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: February 25, 2014
    Assignee: Rutgers, The State University of New Jersey
    Inventors: David Shreiber, Ian Gaudet
  • Patent number: 8653004
    Abstract: Process for producing actives-comprising polymeric networks from oligomers containing (meth)acrylate groups, optionally from further monomers, and from actives, the polymeric networks obtainable by the process, and the use of the networks for various purposes, more particularly for protecting materials or in crop protection.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: February 18, 2014
    Assignee: BASF SE
    Inventors: Alexandre Terrenoire, Hartmut Leininger, James Bullock, Mohammed Shoaib Qureshi, Hans-Werner Schmidt, Reiner Giesa, Meik Ranft, Oscar Lafuente Cerda
  • Patent number: 8647672
    Abstract: The invention relates to an implant material comprising a polymer which is partially cross-linked by means of a metal acrylate salt.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: February 11, 2014
    Assignee: AAP Biomaterials GmbH
    Inventors: Oliver Bielenstein, Stefan Deusser, Christoph Sattig, Volker Stirnal
  • Patent number: 8642087
    Abstract: Antioxidant polymeric compounds are provided that comprise a plurality of monomeric portions, where each monomeric portion includes an antioxidant molecule interposed between at least two acrylate molecules, and where at least one acrylate molecule of each monomeric portion is linked by a diamine molecule to an acrylate molecule of an adjacent monomeric portion to thereby form the polymer. Methods of synthesizing polymeric compounds and methods of using the antioxidant polymeric compounds to reduce oxidative stress are also provided.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: February 4, 2014
    Assignee: University of Kentucky Research Foundation
    Inventors: Thomas D. Dziubla, J. Zach Hilt, Dipti Biswal, David B. Cochran, Paritosh P. Wattamwar
  • Patent number: 8642089
    Abstract: The invention relates to a method for producing active ingredient-containing granules or powders involving the following steps: a) melting a mixture consisting of a pharmaceutical active ingredient and of a (meth)acrylate copolymer, which is comprised of 40 to 75 wt. % of radically polymerized C1 to C4 alkyl esters of acrylic acid or of methacrylic acid and can be comprised of 25 to 60 wt. % (meth)acrylate monomers having an anionic group in the alkyl radial; b) extruding the mixture, and; c) comminuting the extrudate to form a granule or powder. The inventive method is characterized in that the active ingredient is the salt of an alkaline substance, and in that the pH value, which can be measured on the obtained powder or granule, is equal to or less than pH 7.0. The invention also relates to pharmaceutical dosage forms or precursors thereof, which can be produced using the inventive method.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: February 4, 2014
    Assignee: Evonik Roehm GmbH
    Inventors: Hans-Ulrich Petereit, Christian Meier, Andreas Gryczke
  • Patent number: 8629197
    Abstract: A chemically patterned modified hydrogel formed from a modified hydrogel is provided. The hydrogel is conjugated with a multiphoton photocleavable molecule. The molecule has a multiphoton-labile protective group and a protected group. The protective group is cleavable upon multiphoton excitation to deprotect the protected group, without substantial polymerization of the hydrogel. The chemically patterned modified hydrogel is formed by exposing the modified hydrogel to multiphoton excitation to deprotect a portion of the protected groups.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: January 14, 2014
    Inventors: Molly Shoichet, Jordan Wosnick, Ryan Wylie
  • Patent number: 8623409
    Abstract: An oral clonidine dosage unit providing a twenty-four hour extended release profile following a single dose administration is provided. The dosage unit comprises a pharmaceutically effective amount of a coated complex comprising clonidine bound to a cationic exchange resin, which is characterized by a twenty-four hour release profile with a single peak, wherein said oral clonidine dosage unit provides a therapeutically effective plasma concentration for at least about 70%, or at least 85% of the twenty-four hour period following the single dose administration. Both liquid and solid formulations are provided, as are methods of treating a patient by a single administration of a formulation of the invention so as to achieve a therapeutic effect for 24-hours.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: January 7, 2014
    Assignee: Tris Pharma Inc.
    Inventors: Ketan Mehta, Yu-Hsing Tu
  • Patent number: 8609131
    Abstract: An absorbent dressing is described which comprises a crosslinked hydrophilic gel absorbent layer comprising a first component polymer comprising a plurality of polymerized monomer units having pendent hydrophilic groups, and pendent Michael donor groups; and a crosslinking agent comprising at least two Michael acceptor groups.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: December 17, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: David J. Plaut, Duane D. Fansler, Kevin M. Lewandowski, Babu N. Gaddam
  • Patent number: 8586087
    Abstract: An amphiphilic pentablock copolymer that is temperature- and pH-sensitive and has superior and sustained gel strength, includes (a) a hydrophilic triblock copolymer that is temperature-sensitive and that is a copolymer of a poly(ethylene glycol)-based compound and a biodegradable polymer that is one or more polymer selected from the group consisting of polylactide, polyglycolide, polycaprolactone, poly(caprolactone-lactide) random copolymer, poly(caprolactone-glycolide) random copolymer, poly(lactide-glycolide) random copolymer, and mixtures thereof; coupled with (b) a polyurethane-based oligomer (PU) that is pH sensitive and that includes a diisocyanate compound represented by a Formula as follows: OCN—(CH2)n—NCO, where n is an integer of 4 to 10, polymerized with a diol compound having a tertiary amine on a main chain thereof that is one or more of 1,3-bis{1-(2-hydroxyethyl) -4-pyridyl}propane and 1,4-bis(2-hydroxyethyl)piperazine, and is represented by Formulae as follows: where R and R? are alkyl grou
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: November 19, 2013
    Assignee: Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Doo Sung Lee, Kasala Dayananda, Bong Sup Kim
  • Patent number: 8586088
    Abstract: Disclosed is an oral dosage form comprising: (i) an opioid agonist in releasable form and (ii) a sequestered opioid antagonist which is not released when the dosage form is administered orally intact.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: November 19, 2013
    Assignee: Purdue Pharma L.P.
    Inventors: Benjamin Oshlack, Curtis Wright, J. David Haddox
  • Patent number: 8580830
    Abstract: Orally disintegrating film dosage forms for delivering active pharmaceutical agents, methods of formulating the dosage forms to retard absorption through the oral mucosa, and methods of using the dosage forms for the treatment of various medical conditions are provided.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: November 12, 2013
    Assignees: Labtec GmbH, APR Applied Pharma Research S.A.
    Inventors: Christian Leichs, Armin Breitenbach, Ingo Lehrke, Paolo Galfetti
  • Patent number: 8580302
    Abstract: The present invention relates to a pharmaceutical composition in a solid unit dosage form for oral administration in a human or lower animal comprising: a. a safe and effective amount of a therapeutically active agent; b. an inner coating layer selected from the group consisting of poly(methacrylic acid, methyl methacrylate) 1:2, poly(methacrylic acid, methyl methacrylate) 1:1, and mixtures thereof; and c. an outer coating layer comprising an enteric polymer or film coating material; wherein the inner coating layer is not the same as the outer coating layer; wherein if the inner coating layer is poly(methacrylic acid, methyl methacrylate) 1:1 then the outer coating layer is not poly(methacrylic acid, methyl methacrylate) 1:2 or is not a mixture of poly(methacrylic acid, methyl methacrylate) 1:1 and poly(methacrylic acid, methyl methacrylate) 1:2; and wherein the inner coating layer and the outer coating layer do not contain any therapeutically active agent.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: November 12, 2013
    Assignee: Warner Chilcott Company, LLC
    Inventors: Gregory Paul Dittmar, Joseph Michael Amante, Tony Ryan Cronk, Daniel Gary Newby
  • Patent number: 8568778
    Abstract: The invention relates to an oral, multiparticulate form of administration, comprising pellets in the size ranging from 50 to 2500 $g(m)m which are substantially constituted of a) an inner matrix layer containing nanoparticles that contain a nucleic acid active ingredient and being embedded in a matrix of a polymer having a mucoadhesive effect, and b) an outer film coating, substantially consisting of an anionic polymer or copolymer that is optionally formulated with pharmaceutically conventional adjuvants, especially emollients.
    Type: Grant
    Filed: November 5, 2005
    Date of Patent: October 29, 2013
    Assignee: Evonik Röhm GmbH
    Inventors: Rosario Lizio, Hans-Ulrich Petereit, Dave Trupti, Michael Gottschalk
  • Publication number: 20130273162
    Abstract: A control release and abuse-resistant opiate drug delivery oral wafer or edible oral film dosage to treat pain and substance abuse is provided. The drug delivery oral wafer or edible oral film dosage includes a controlled release layer containing enteric-release beads dispersed in a polymer matrix. The enteric-release beads are formed from a therapeutic amount of an opioid agonist and/or pharmaceutically acceptable salt thereof and a sub-therapuetic amount of opioid antagonist and/or pharmaceutically acceptable salt thereof coated or encapsulated in an enteric-release polymer. The controlled release polymer matrix dissolves or disintegrates following administration or consumption of the oral wafer or edible oral film, releasing the enteric-release beads to be swallowed, with subsequent absorption of the active ingredients within the patient's intestines.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 17, 2013
    Inventor: Michael Hsin Chwen LI
  • Patent number: 8545886
    Abstract: The invention is directed to a Pharmaceutical extended release system, particularly for oral administration, of a pH-dependent water-soluble active substance, comprising or essentially consisting of a) flibanserin or a pharmaceutically acceptable derivative thereof as active substance; b) one or more pharmaceutically acceptable pH-dependent polymers; c) one or more pharmaceutically acceptable pH-independent polymers; d) one or more pharmaceutically acceptable acids; and e) optionally one or more additives. The present invention provides a release profile of flibanserin which is independent on the pH in the gastrointestinal tract when administered orally resulting in a significantly improved bioavailability.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: October 1, 2013
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Wolfram Eisenreich, Thomas Friedl
  • Patent number: 8535728
    Abstract: Colorless composition comprising silver particles and water, wherein said particles comprise an interior of elemental silver and an exterior of ionic silver oxide, wherein the silver particles are present in the water at a level of about 5-40 ppm, and wherein the composition manifests significant antimicrobial properties. Methods of use of the composition are described. The composition can be incorporated into a hydrogel with essentially no loss of antimicrobial properties.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: September 17, 2013
    Assignee: American Silver, LLC
    Inventors: Robert J. Holladay, Herbert Christensen, William Moeller
  • Patent number: 8524256
    Abstract: The disclosure relates to a deodorant composition comprising a physiologically acceptable water-in-oil emulsion carrier comprising at least one antiperspirant ingredient and at least one semicrystalline polymer having a melting point greater than or equal to 30° C. The disclosure further relates to the use of cosmetic products for topical application to humans, such as deodorant products, and to methods of treating human perspiration and body odors associated with human perspiration. This composition may be in the form of a cosmetic cream having a very pleasant texture on application to the skin.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: September 3, 2013
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Estelle Prud'Homme, Véronique Douin
  • Patent number: 8524368
    Abstract: The present invention provides dynamic charge state cationic polymers that are useful for delivery of anionic molecules. The dynamic charge state cationic polymers are designed to have cationic charge densities that decrease by removal of removable functional groups from the polymers. The present invention also provides interpolyelectrolyte complexes containing the polymers complexed to a polyanion. Methods for using the interpolyelectrolyte complexes to deliver anionic compounds are also provided.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: September 3, 2013
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: David M. Lynn, Adam D. Miller
  • Patent number: 8524273
    Abstract: A transdermal absorption preparation having a support and a pressure-sensitive adhesive layer consisting of multiple layers, wherein the pressure-sensitive adhesive layer comprises a drug-retaining layer containing a drug and an acrylic pressure-sensitive adhesive and a skin adhesion layer containing a styrene-isoprene-styrene block copolymer. This preparation can continuously release bisoprolol at a constant concentration. Moreover, it can be easily produced.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: September 3, 2013
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Satoshi Amano, Sachiko Honma, Tetsuro Tateishi, Natsumi Kase
  • Patent number: 8524759
    Abstract: An improved phenylbutazone carrier composition provides increased palatability to horses. Additionally, the composition improves the bioavailability of the phenylbutazone and thus increases the horse's blood plasma levels of the medicine for the same effective dosage of the medicine.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: September 3, 2013
    Inventor: Douglas J. Gordon
  • Patent number: 8507527
    Abstract: The present invention provides a method for stabilizing an anti-dementia drug in a pharmaceutical composition containing the anti-dementia drug and a high molecular weight basic substance by adding a high molecular weight acidic substance to said pharmaceutical composition. Further, the present invention provides a pharmaceutical composition containing an anti-dementia drug and a high molecular basic substance in which a high molecular weight acidic substance is contained for stabilizing the anti-dementia drug. Furthermore, the present invention provides a method for manufacturing a pharmaceutical composition which comprises steps wherein a solution or suspension containing a high molecular weight acidic substance is added to a mixture of an anti-dementia drug and a high molecular weight basic substance for the sake of stabilizing the anti-dementia drug.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: August 13, 2013
    Assignee: EISAI R & D Management Co., Ltd.
    Inventors: Yosuke Ueki, Yasuyuki Suzuki, Satoshi Fujioka
  • Patent number: 8501215
    Abstract: Injectable depot compositions are provided that include a polymer matrix having a plurality of bioerodible, biocompatible polymers wherein each polymer of the plurality of polymers has a specified average molecular weight, and the polymer matrix has a broad molecular weight distribution of the plurality of polymers; a solvent having a miscibility in water of less than or equal to 7 wt % at 25° C., in an amount effective to plasticize the polymer and form a gel therewith; and a beneficial agent. The compositions have substantially improved shear thinning behavior and reduced injection force, rendering the compositions readily implanted beneath a patient's body surface by injection.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: August 6, 2013
    Inventors: Guohua Chen, Paul Houston, Lothar Kleiner, Jeremy Wright
  • Patent number: 8497357
    Abstract: A heterobifunctional poly(ethylene glycol) is provided having a hydrolytically degradable linkage, a first terminus comprising an acrylate group, and a second terminus comprising a target such as a protein or pharmaceutical agent or a reactive moiety capable of coupling to a target. Hydrogels can be prepared. The hydrogels can be used as a carrier for a protein or a pharmaceutical agent that can be readily released in a controlled fashion.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: July 30, 2013
    Assignee: Nektar Therapeutics
    Inventors: J. Milton Harris, Xuan Zhao
  • Publication number: 20130189333
    Abstract: An oral product includes a body that is wholly receivable in an oral cavity. The body includes a mouth-stable polymer matrix, cellulosic fibers embedded in the mouth-stable polymer matrix, and an additive dispersed in the mouth-stable polymer matrix. The oral product is adapted to release the additive from the body when the body is received within the oral cavity and exposed to saliva.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 25, 2013
    Applicant: ALTRIA CLIENT SERVICES INC.
    Inventor: Altria Client Services Inc.
  • Patent number: 8491935
    Abstract: A coated drug-ion exchange resin complex comprising a core composed of a drug complexed with a pharmaceutically acceptable ion-exchange resin is provided. The drug-ion exchange resin complex is in admixture with a release retardant. The coating is a polyvinyl acetate polymer and a plasticizer. Methods of making and products containing this coated complex are described.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: July 23, 2013
    Assignee: Tris Pharma, Inc.
    Inventors: Ketan Mehta, Yu-Hsing Tu
  • Patent number: 8481071
    Abstract: A composition is provided, wherein the composition comprises a water-swellable, water-insoluble polymer, a blend of a hydrophilic polymer with a complementary oligomer capable of hydrogen or electrostatic bonding to the hydrophilic polymer. The composition also includes a backing member. Active ingredients, such as a whitening agent, may be included. The composition finds utility as an oral dressing, for example, a tooth whitening composition that is applied to the teeth in need of whitening. The composition can be designed to be removed when the degree of whitening has been achieved or left in place and allowed to erode entirely. In certain embodiments, the composition is translucent. Methods for preparing and using the compositions are also disclosed.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: July 9, 2013
    Assignee: Corium International, Inc.
    Inventors: Parminder Singh, Adrian Faasse, Gary W. Cleary, Sri Mudumba, Mikhail M. Feldstein, Danir F. Bairamov
  • Patent number: 8481565
    Abstract: The present invention provides a method for stabilizing an anti-dementia drug in a pharmaceutical composition containing the anti-dementia drug and a high molecular weight basic substance by adding a high molecular weight acidic substance to said pharmaceutical composition. Further, the present invention provides a pharmaceutical composition containing an anti-dementia drug and a high molecular basic substance in which a high molecular weight acidic substance is contained for stabilizing the anti-dementia drug. Furthermore, the present invention provides a method for manufacturing a pharmaceutical composition which comprises steps wherein a solution or suspension containing a high molecular weight acidic substance is added to a mixture of an anti-dementia drug and a high molecular weight basic substance for the sake of stabilizing the anti-dementia drug.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: July 9, 2013
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Yosuke Ueki, Yasuyuki Suzuki, Satoshi Fujioka
  • Publication number: 20130171256
    Abstract: This disclosure relates to an extended release oral dosage form comprising a matrix containing a viscosity modifier (but no lipid) and coated granules containing venlafaxine or a pharmaceutically acceptable salt or solvate thereof. The dosage form has alcohol resistance and may also have crush resistance.
    Type: Application
    Filed: May 9, 2011
    Publication date: July 4, 2013
    Applicant: CIMA LABS Inc.
    Inventor: Ehab Hamed
  • Patent number: 8475837
    Abstract: The potential for substance abuse involving residual amounts of abusable substances remaining in used skin-worn patches is reduced by the provision of a system and method for combining the abusable substance with a separate anti-abuse substance agent as part of a removal or disposal procedure.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: July 2, 2013
    Assignee: Teikoku Pharma USA, Inc.
    Inventors: Carter R. Anderson, Russell L. Morris
  • Patent number: 8475844
    Abstract: Polymers of fluorinated monomers and acrylate and alkyl acrylates are disclosed which demonstrate improved performance as coatings for implantable devices. Such coatings may, for example, be used to release a bioactive agent from the medical device. One specific application lies in drug-eluting coatings for stents.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: July 2, 2013
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Gordon Kocur, David Rolf, James Lasch, Kasyap Seethamraju
  • Patent number: 8470905
    Abstract: A method and a device for effecting the cordless retraction of the gingival sulcus tissue that includes a dam shaped to be fitted onto a tooth. In one embodiment, the well of the dam is pre-filled with a predetermined amount of a flowable retraction material having a heavy viscosity or putty consistency. In another embodiment a hydrophilic material is added. The preloaded tooth dam is fitted to a prepared tooth so that when pressure is applied onto the tooth dam, the retraction material is displaced under pressure and forced into the sulcus, causing the gingival tissue to retract away from the tooth to enlarge the gingival sulcus. In another embodiment the cap is filled with a dilatant material. In another embodiment, the cap is filled with an impregnated compressible porous material. In yet another embodiment, the cap is pre-dosed with an astringent or hemostatic agent.
    Type: Grant
    Filed: May 15, 2011
    Date of Patent: June 25, 2013
    Assignee: Centrix, Inc.
    Inventors: William B. Dragan, John J. Discko
  • Publication number: 20130142877
    Abstract: The invention relates to a pharmaceutical dosage form comprising one or more antiretroviral active ingredients in the form of a solid dispersion or solid solution in a matrix, wherein said matrix comprises an amino(meth)acrylate copolymer, characterized in that the matrix does not contain any essential amounts of pharmaceutically acceptable surfactants with an HLB value from 12 to 18 and in that the matrix comprises a mono carboxylic acid or an alcohol with 12 to 22 carbon atoms or both.
    Type: Application
    Filed: March 3, 2011
    Publication date: June 6, 2013
    Applicant: EVONIK ROEHM GmbH
    Inventors: Pravin Nalawade, Smitha Shetty, Hema Ravishankar, Shripad Gadhinglajkar, Andreas Gryczke, Hans-Ulrich Petereit, Kathrin Nollenberger
  • Publication number: 20130129827
    Abstract: The present invention relates to extended release pharmaceutical compositions of paliperidone and process of preparation thereof.
    Type: Application
    Filed: October 18, 2010
    Publication date: May 23, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Kumaravel Vivek, Rajan Kumar Verma, Romi Barat Singh
  • Patent number: 8445016
    Abstract: The invention features grafted polymer systems for use in medical devices and/or for the delivery of active agents. The grafted polymers include at least one transport moiety, a linear backbone segment, and a pendant segment.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: May 21, 2013
    Assignee: Interface Biologics, Inc.
    Inventors: J. Paul Santerre, Roseita Esfand, Meilin Yang
  • Patent number: 8440217
    Abstract: A contact lens product, a method and system for forming the contact lens product, and a method of using the contact lens product. The contact lens product includes a soft disposable contact lens loaded with a drug and the carriers which carry the drug. The lens has a mechanical and optical structure formed by the core polymer included within the lens. The contact lens product is configured to have the drug released from its carrier continuously into an eye of a mammal while the contact lens product is adhered to the eye of the mammal during a continuous period of time, the drug being configured to treat or prevent at least one adverse condition of the eye of the mammal during the continuous period of time. The mammal may be a human being or a veterinary animal.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: May 14, 2013
    Inventors: Mawaheb M. El-Naggar, Shaker A. Mousa
  • Patent number: 8436083
    Abstract: A coating having an adhesive hydrophilic polymer and an amphiphilic additive. The amphiphilic additive has a hydrophilic chain, a biocidal functional group bonded to the hydrophilic chain, and a hydrophobic moiety bonded to the hydrophilic chain or to the biocidal functional group. A method of forming a biocidal surface by providing an article, and coating the article with the above coating. A compound having the formula: Y—(O—CH2—CH2)n—R—(CH2)m—CH3. Y is CH3 or H. R is X is a halogen, and m and n are independently selected positive integers.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: May 7, 2013
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: James H Wynne, Joanne M Jones-Meehan, Arthur W Snow, Leonard J Buckley
  • Patent number: 8431143
    Abstract: A titanium dioxide composite is provided that can be stably dispersed in an aqueous solvent and easily administered into a living body, such as human, and allows elimination of the drug efficacy of a pharmaceutical compound supported thereon by light irradiation and a dispersion thereof. A composite is used in which a pharmaceutical compound is bound to titanium dioxide having photocatalytic activity through a hydrophilic polymer. The composite is stable in an aqueous solvent and easily administered into a living body, and adverse drug reactions of the pharmaceutical compound can be reduced by administering the composite into the body and irradiating the composite with a light to photoexcite the titanium dioxide to decompose the pharmaceutical compound in a region where the drug efficacy of the pharmaceutical composition is not required.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: April 30, 2013
    Assignee: Toto Ltd.
    Inventors: Shuji Sonezaki, Koki Kanehira, Yumi Ogami, Toshiaki Banzai, Yoshinobu Kubota
  • Patent number: 8425925
    Abstract: Pesticidal compositions and articles providing topical application of a mixture of (1) a macrolide of the avermectin/milbemycin class, such as, but not limited to ivermectin, abamectin, or milbemectin, and (2) a synergist of the aryl aliphatic ether-class, such as, but not limited to piperonyl butoxide, present in (3) a weight ratio of synergist:macrolide that is great than 1:1. The compositions and articles demonstrate efficacy, even in point-of-contact applications, against various pests of domestic animals, such as, but not limited to arthropod ectoparasites including horn flies and buffalo flies. Methods are provided in which compositions can be employed as pour-ons, spot-ons, dusts, or sprays for direct topical application to the domestic animal; or in which articles comprising a polymer resin base, such as an ear tag, from which the active ingredients of the composition can be released, are affixed to the animal to provide long-term delivery.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: April 23, 2013
    Assignee: Y-Tex Corporation
    Inventor: Joe D. Kellerby
  • Patent number: 8420121
    Abstract: Drug delivery vehicles that release one or more drugs, e.g., an opioid antagonist and/or an opioid, in response to changes in the chemistry of body fluids, specifically in response to changes in the partial pressure of CO2 in the environment of the hydrogel are described. The drug delivery vehicles include hydrogels that swell or shrink in response to changes in the partial pressure of CO2 in their environment, thus regulating release of an entrapped drug.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: April 16, 2013
    Assignee: University of Massachusetts
    Inventor: Sankaran Thayumanavan
  • Patent number: 8414923
    Abstract: A method for the immobilization of bioactive molecules within a polymer substrate to be employed as an oral drug delivery system is provided. A water insoluble carrier matrix can be provided that is water swellable, and biologically active agents can be incorporated. The matrix can be a macromolecular network synthesized by gamma radiation at temperatures between ?78 degrees Celsius to a boiling point of a component elected for polymerization.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: April 9, 2013
    Inventors: Eduardo Esteban Smolko, Eduardo Antonio Lombardo, Fabio Martin Lombardo, Jorge Héctor Lombardo
  • Patent number: 8404277
    Abstract: A matrix-type transdermal drug delivery system including capsaicin or a capsaicin derivative as an active component and used for treating neuropathy, pain, and inflammation and a preparation method thereof are provided. The matrix-type transdermal drug delivery system includes: a drug protecting layer; a matrix layer formed on the drug protecting layer and including 0.1-25 wt % of capsaicin or a capsaicin derivative, 40-95 wt % of an adhesive including a water-insoluble acrylic polymer, 1-30 wt % of an alcohol having a molecular weight of 600 Daltons or less, 0.1-20 wt % of a nonionic surfactant, and 0.1-20 wt % of a solubilizing agent including a hydrophilic polymer; and a release liner formed on the matrix layer, and is used for treating neuropathy, pain, or inflammation.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: March 26, 2013
    Assignee: Samyang Biopharmaceuticals Corporation
    Inventors: Jin-Deok Song, Dong-Won Kim
  • Publication number: 20130059007
    Abstract: A coated drug-ion exchange resin complex comprising a core composed of a drug complexed with a pharmaceutically acceptable ion-exchange resin is provided. The drug-ion exchange resin complex is in admixture with a release retardant. The coating is a polyvinyl acetate polymer and a plasticizer. Methods of making and products containing this coated complex are described.
    Type: Application
    Filed: November 1, 2012
    Publication date: March 7, 2013
    Applicant: TRIS PHARMA, INC.
    Inventor: Tris Pharma. Inc.
  • Patent number: 8388984
    Abstract: Compositions which deliver adsorbents, alone or in combination with active drug “degrading molecules,” in a site-specific manner to the intestine, and which eliminate or at least lower the concentration of residual unwanted material within the intestine, and methods of treatment using the compositions, are disclosed. The compositions are ideally designed to specifically release the adsorbents in a programmed manner at a specific site of the intestinal tract. Programmed delivery prevents adsorbents from interfering with the normal absorption process of a given molecule after oral absorption, until it reaches the lower part of the small intestine. The compositions can be used to adsorb, and therefore remove, any residual drug, metabolite thereof, or bacterial toxin after oral or parenteral administration which would otherwise cause adverse effects in the lower intestine and/or colon.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: March 5, 2013
    Assignees: Da Volterra, Centre National de la Recherche Scientifique, Assistance Publique—Hopitaux de Paris, Universite Paris Diderot—Paris 7, Universite Paris-SUD 11
    Inventors: Helene-Celine Huguet, Antoine Andremont, Nicolas Tsapis, Elias Fattal
  • Patent number: 8372933
    Abstract: Hyperbranched, water-soluble polymers, obtainable by Michael polyaddition of ?-, ?-, or ?-cyclodextrins and amines to bisacrylamides.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: February 12, 2013
    Assignee: L'Urederra Fundacion Para el Desarrollo Tecnologico y Social
    Inventors: Paolo Ferruti, Elisabetta Ranucci, Francesco Trotta, Roberta Cavalli, Claudio Fernandez
  • Patent number: 8357399
    Abstract: Disclosed is an oral dosage form comprising: (i) an opioid agonist in releasable form and (ii) a sequestered opioid antagonist which is not released when the dosage form is administered orally intact.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: January 22, 2013
    Assignee: Purdue Pharma L.P.
    Inventors: Benjamin Oshlack, Curtis Wright, J. David Haddox