Patents Represented by Attorney John W. Routh
  • Patent number: 5814332
    Abstract: This disclosure is directed to preparation of individual taste-masked, high bioavailability, high payload, microcapsules by microencapsulation of water-insoluble NSAID drug materials in the substantial absence of microcapsule agglomerates. These taste-masked microcapsules contain a high payload, e.g., about 83+ wt. % of said NSAID drug material having high bioavailability and can then be formulated into chewable tablets and liquid aqueous suspensions for medicinal use. Both cellulose acetate phthalate and gelatin are the microencapsulating polymer wall material.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: September 29, 1998
    Assignee: Eurand America, Inc.
    Inventors: Sambasiva Rao Ghanta, Robert Edmon Guisinger
  • Patent number: 5709886
    Abstract: Taste masked effervescent microcapsules are provided each microcapsule containing an effervescent admixture of sodium bicarbonate and citric acid microencapsulated with ethylcellulose, the effervescent microcapsules being useful in formulating taste masked effervescent chewable tablets also containing microencapsulated, unpleasant tasting drugs such as non-steroidal, anti-inflammatory, NSAID drugs.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: January 20, 1998
    Assignee: Eurand America, Incorporated
    Inventors: Marie Jean Bettman, Phillip J. Percel, Thomas C. Powell
  • Patent number: 5653993
    Abstract: This disclosure is directed to preparation of individual taste-masked, high bioavailability, high payload, microcapsules by microencapsulation of water-insoluble NSAID drug materials in the substantial absence of microcapsule agglomerates. These taste-masked microcapsules contain a high payload, e.g., about 83+wt. % of said NSAID drug material having high bioavailability and can then be formulated into chewable tablets and liquid aqueous suspensions for medicinal use. Both cellulose acetate phthalate and gelatin are the microencapsulating polymer wall material.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 5, 1997
    Assignee: Eurand America, Inc.
    Inventors: Sambasiva Rao Ghanta, Robert Edmon Guisinger
  • Patent number: 5639475
    Abstract: Taste masked effervescent microcapsules are provided each microcapsule containing an effervescent admixture of sodium bicarbonate and citric acid microencapsulated with ethylcellulose, the effervescent microcapsules being useful in formulating taste masked effervescent chewable tablets also containing microencapsulated, unpleasant tasting drugs such as non-steroidal, anti-inflammatory, NSAID drugs.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: June 17, 1997
    Assignee: Eurand America, Incorporated
    Inventors: Marie Jean Bettman, Phillip J. Percel, Thomas C. Powell
  • Patent number: 5622723
    Abstract: An improvement in the process of coacervation of chlorpheniramine maleate is provided whereby a predetermined amount of chlorpheniramine maleate charged to the process is maintained in the microcapsules by pre-saturating the coacervation medium with chlorpheniramine maleate.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: April 22, 1997
    Assignee: Eurand America, Incorporated
    Inventors: Marie J. Bettman, Sambasiva R. Ghanta
  • Patent number: 5616621
    Abstract: There is provided a pharmaceutically acceptable taste masking liquid excipient base for administration of relatively large amounts of unpleasant tasting medicines, said excipient base having higher than normal viscosities due to a combination of polyethylene glycol and cellulosic material.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: April 1, 1997
    Assignee: American Home Products Corporation
    Inventors: Shankar D. Popli, Zenaida O. Go
  • Patent number: 5602182
    Abstract: There is provided a taste masked liquid pharmaceutical composition for administration of a relatively large amount of unpleasant tasting medicines. More particularly, the composition comprises a taste masking liquid excipient base for administration of relatively large amounts of unpleasant tasting medicines, said excipient base having higher than normal viscosities due to a combination of a normally solid polyethylene glycol and sodium carboxymethylcellulose.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 11, 1997
    Assignee: American Home Products Corporation
    Inventors: Shankar D. Popli, Zenaida O. Go
  • Patent number: 5563177
    Abstract: There is provided a taste masked liquid pharmaceutical composition for administration of a relatively large amount of unpleasant tasting medicines. More particularly, the composition comprises a taste masking liquid excipient base for administration of relatively large amounts of unpleasant tasting medicines, said excipient base having higher than normal viscosities due to a combination of a normally solid polyethylene glycol and sodium carboxymethylcellulose.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: October 8, 1996
    Assignee: American Home Products Corporation
    Inventors: Shankar D. Popli, Zenaida O. Go
  • Patent number: 5468502
    Abstract: Solvent systems for enhancing the solubility of ibuprofen for encapsulation into soft gelatin capsules is provided by the addition of ammonium acetate to the solvent system.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: November 21, 1995
    Assignee: American Home Products Corporation
    Inventors: Andrew A. Argiriadi, Robert G. Blank, David H. Giamalva
  • Patent number: 5348747
    Abstract: A finely divided solid pharmaceutical dosage form for oral administration dissolved or suspended in a pharmaceutically acceptable liquid is described which pharmaceutical dosage form consists of a pharmaceutical coating on a sugar core.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: September 20, 1994
    Assignee: American Home Products Corporation
    Inventor: Giustino Bianco
  • Patent number: 5287595
    Abstract: A combination glide and pintle for furniture is provided which is integrally molded in one piece from a thermoplastic.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: February 22, 1994
    Assignee: Robert E. Miller & Co., Inc.
    Inventor: William H. Y. Stevens, Jr.
  • Patent number: 5210099
    Abstract: The invention provides an analgesic cream containing ibuprofen with superior skin penetration properties obtained in part by maintaining a pH of 4 to 7.2 such that the ibuprofen is suspended in substantially solid crystalline form.
    Type: Grant
    Filed: January 8, 1992
    Date of Patent: May 11, 1993
    Assignee: American Home Products Corporation
    Inventors: Dhiraj S. Mody, Robert G. Blank, Gary R. Agisim, Gloria Y. Chen
  • Patent number: 5185373
    Abstract: The invention provides ibuprofen and ibuprofen containing pharmaceutical preparations stabilized against thermal degradation by the presence of a phenolic type antioxidant.
    Type: Grant
    Filed: August 13, 1991
    Date of Patent: February 9, 1993
    Assignee: American Home Products Corporation
    Inventors: Solomon Motola, Robert G. Blank, Alan R. Branfman
  • Patent number: 5087454
    Abstract: Ibuprofen tablets/caplets formed by wet granulation of the ibuprofen characterized by a dissolution profile maintained stable on aging by incorporating croscarmellose sodium separately into the wet granulation and the compression mix and further incorporating sodium lauryl sulfate into the compression mix.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: February 11, 1992
    Assignee: American Home Products Corporation
    Inventors: Joanne R. Duerholz, Dolores DiMaria, Robert G. Blank
  • Patent number: 5028625
    Abstract: A water-soluble salt of ibuprofen with meglumine (N-methylglucamine) is prepared, isolate and characterized and pharmaceutical preparations containing the salt for oral administration are described which are clear, pleasant tasting liquids.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: July 2, 1991
    Assignee: American Home Products Corporation
    Inventors: Solomon Motola, Alan R. Branfman, Gary R. Agisim, Donald J. Quirk
  • Patent number: 5024997
    Abstract: Palatable ibuprofen aqueous base solutions are described which contain dissolved therein ibuprofen and hydroxypropyl beta cyclodextrin, which form an inclusion complex, and sweeteners to mask the sour taste common to organic acids.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: June 18, 1991
    Assignee: American Home Products Corporation
    Inventors: Solomon Motola, Gary R. Agisim, Annabelle Mogavero
  • Patent number: 4975465
    Abstract: A liquid water base ibuprofen composition for oral administration is described, the ibuprofen being maintained in suspension by a combination of primary suspending agents and being taste masked by primary taste masking agents, the composition also containing a buffer acid to adjust the pH of the composition to between 1.5 and up to about 3.5 and to provide a buffer capacity within the range of 0.03 to 0.05 between the initial pH and a pH which is 1.0 pH unit higher than the initial pH.
    Type: Grant
    Filed: March 28, 1989
    Date of Patent: December 4, 1990
    Assignee: American Home Products Corporation
    Inventors: Solomon Motola, Annabelle Mogavero, Gary R. Agisim, Pamela N. Panopoulos
  • Patent number: 4966768
    Abstract: A sustained release dosage form of etodolac is provided which is a tablet having as essential components etodolac, hydroxyproplymethylcellulose, ethylcellulose and a release rate modifying agent such as dibasic sodium phosphate, the hydroxyproplymethylcellulose having a hydroxypropoxyl content of about 7.0% to 8.6% by weight.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: October 30, 1990
    Assignee: American Home Products Corporation
    Inventors: John J. Michelucci, Deborah M. Sherman, Richard J. DeNeale
  • Patent number: 4946684
    Abstract: A pharmaceutical dosage form is provided which disintegrates rapidly in water having an open matrix network structure comprised of mannitol and a natural gum and which can be used particularly for oral administration to pediatric and geriatric patients.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: August 7, 1990
    Assignee: American Home Products Corporation
    Inventors: Robert G. Blank, Dhiraj S. Mody, Richard J. Kenny, Martha C. Aveson
  • Patent number: 4928840
    Abstract: A tamper-proof capsule dosage form for pharmaceuticals having a medicinal containing caplet adhesively bonded to the inner end surfaces of the capsule such that upon tampering the capsule dosage form will be destroyed or rendered non-reusable.
    Type: Grant
    Filed: February 25, 1986
    Date of Patent: May 29, 1990
    Assignee: American Home Products Corporation
    Inventors: Stanley F. Barshay, Peter Mayer