Patents by Inventor Fengqi Zhang

Fengqi Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10075174
    Abstract: A phase rotator apparatus has phase interpolation and transimpedance amplifier (TIA) stages. This separates gain and bandwidth as degrees of design freedom, facilitating a reduction in power consumption while enabling the data link to transmit and receive higher speed data. Four phases of an incoming signal are combined by the phase interpolation stage using weighting currents and current-source loads to produce a phase shifted current based signal that the TIA stage receives as input. The TIA stage then converts the signal to a voltage based signal. The quiescent operating voltage of the stage outputs can be maintained with common mode feedback circuits and injector currents.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: September 11, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: William L. Bucossi, Hayden C. Cranford, Jr., Vivek K. Sharma, Fengqi Zhang
  • Patent number: 9951418
    Abstract: Disclosed is a method for preparing structured graphene on a SiC substrate on the basis of Cl2 reaction, the procedures are as follows: firstly, performing standard cleaning to a SiC sample chip; depositing a layer of SiO2 on the surface of the SiC sample chip and engraving a figure window on the SiO2 layer; then arranging the windowed sample chip in a quartz tube, introducing a mixed gas of Ar and Cl2 into the quartz tube, reacting the bare SiC with Cl2 for 3-8 min at 700-1100° C. to generate a carbon film; arranging the generated carbon film in Ar gas, annealing for 10-30 min at 1000-1200° C. to generate the structured graphene on the window on the carbon film. The method is simple and safe; the generated structured graphene has a smooth surface and low porosity and can be used for making microelectronic devices.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: April 24, 2018
    Assignee: XIDIAN UNIVERSITY
    Inventors: Hui Guo, Keji Zhang, Yuming Zhang, Pengfei Deng, Tianmin Lei, Fengqi Zhang
  • Patent number: 9701669
    Abstract: The present invention relates to bicyclic himbacine derivatives of the formula or a pharmaceutically acceptable salt thereof wherein: R1 is —[C(Ra)(Rb)]x—[C(Rb)(Rb)]y—C(O)NH2, or —N(H)—[(CH2)]z—C(O)—NH2, W is and the remaining variables are described herein. The compounds of the invention are effective inhibitors of the PAR-1 receptor. The inventive compounds may be used for the treatment or prophylaxis of disease states such as ASC, secondary prevention of myocardial infarction or stroke, or PAD.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: July 11, 2017
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Zhiqiang Yang, Fengqi Zhang, Guizhen Dong, Sandra Lee Knowles, Milana Maletic
  • Publication number: 20170183342
    Abstract: The present invention is directed to 6,7-dihydro-5H-pyrrolo[3,4-b]pyridine-5-one compounds which are allosteric modulators of the M4 muscarinic acetylcholine receptor. The present invention is also directed to uses of the compounds described herein in the potential treatment or prevention of neurological and psychiatric disorders and diseases in which M4 muscarinic acetylcholine receptors are involved. The present invention is also directed to compositions comprising these compounds. The present invention is also directed to uses of these compositions in the potential prevention or treatment of such diseases in which M4 muscarinic acetylcholine receptors are involved.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 29, 2017
    Inventors: JIANMING BAO, XIAOLEI GAO, SANDRA L. KNOWLES, CHUNSING LI, I, MICHAEL MAN-CHU LO, ROBERT D. MAZZOLA, Jr., DEBRA L. ONDEYKA, ANDREW W. STAMFORD, FENGQI ZHANG
  • Publication number: 20160185764
    Abstract: The present invention relates to bicyclic himbacine derivatives of the formula or a pharmaceutically acceptable salt thereof wherein: R1 is —[C(Ra)(Rb)]x—[C(Rb)(Rb)]y—C(O)NH2, or —N(H)—[(CH2)]z—C(O)—NH2, W is and the remaining variables are described herein. The compounds of the invention are effective inhibitors of the PAR-1 receptor. The inventive compounds may be used for the treatment or prophylaxis of disease states such as ASC, secondary prevention of myocardial infarction or stroke, or PAD.
    Type: Application
    Filed: August 18, 2014
    Publication date: June 30, 2016
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Zhiqiang Yang, Fengqi Zhang, Guizhen Dong, Sandra Lee Knowles, Milana Maletic
  • Patent number: 9359339
    Abstract: Glucagon receptor antagonist compounds are disclosed. The compounds are useful for treating type 2 diabetes and related conditions. Pharmaceutical compositions and methods of treatment are also included.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: June 7, 2016
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Songnian Lin, Fengqi Zhang, Emma R. Parmee, Sunita V. Dewnani
  • Patent number: 9353101
    Abstract: Compounds having the structure of Formula I, including pharmaceutically acceptable salts of the compounds, are CETP inhibitors and may be useful for raising HDL-cholesterol and reducing LDL-cholesterol in human patients and for treating or preventing atherosclerosis.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: May 31, 2016
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: John J. Acton, III, Feng Ye, Petr Vachal, Deyou Sha, James F. Dropinski, Lin Chu, Debra Ondeyka, Alexander J. Kim, Vincent J. Colandrea, Yi Zang, Fengqi Zhang, Guizhen Dong
  • Patent number: 9126976
    Abstract: Compounds having the structure of Formula Ia, including pharmaceutically acceptable salts of the compounds, are CETP inhibitors and may be useful for raising HDL-cholesterol, reducing LDL-cholesterol, and for treating or preventing atherosclerosis.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: September 8, 2015
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Rajan Anand, Vincent J. Colandrea, Maud Reiter, Petr Vachal, Aaron Zwicker, Jonathan E. Wilson, Fengqi Zhang, Kake Zhao
  • Publication number: 20150132506
    Abstract: Disclosed is a method for preparing structured graphene on a SiC substrate on the basis of Cl2 reaction, the procedures are as follows: firstly, performing standard cleaning to a SiC sample chip; depositing a layer of SiO2 on the surface of the SiC sample chip and engraving a figure window on the SiO2 layer; then arranging the windowed sample chip in a quartz tube, introducing a mixed gas of Ar and Cl2 into the quartz tube, reacting the bare SiC with Cl2 for 3-8 min at 700-1100° C. to generate a carbon film; arranging the generated carbon film in Ar gas, annealing for 10-30 min at 1000-1200° C. to generate the structured graphene on the window on the carbon film. The method is simple and safe; the generated structured graphene has a smooth surface and low porosity and can be used for making microelectronic devices.
    Type: Application
    Filed: December 31, 2012
    Publication date: May 14, 2015
    Inventors: Hui Guo, Keji Zhang, Yuming Zhang, Pengfei Deng, Tianmin Lei, Fengqi Zhang
  • Publication number: 20150111866
    Abstract: Compounds having the structure of Formula I, including pharmaceutically acceptable salts of the compounds, are CETP inhibitors and may be useful for raising HDL-cholesterol and reducing LDL-cholesterol in human patients and for treating or preventing atherosclerosis.
    Type: Application
    Filed: April 26, 2013
    Publication date: April 23, 2015
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: John J. Acton, III, Feng Ye, Petr Vachal, Deyou Sha, James F. Dropinski, Lin Chu, Debra Ondeyka, Alexander J. Kim, Vincent J. Colandrea, Yi Zang, Fengqi Zhang, Guizhen Dong
  • Publication number: 20150018399
    Abstract: Glucagon receptor antagonist compounds are disclosed. The compounds are useful for treating type 2 diabetes and related conditions. Pharmaceutical compositions and methods of treatment are also included.
    Type: Application
    Filed: August 5, 2014
    Publication date: January 15, 2015
    Inventors: SONGNIAN LIN, Fengqi Zhang, Emma R. Parmee, Sunita V. Dewnani
  • Publication number: 20140357632
    Abstract: Compounds having the structure of Formula Ia, including pharmaceutically acceptable salts of the compounds, are CETP inhibitors and may be useful for raising HDL-cholesterol, reducing LDL-cholesterol, and for treating or preventing atherosclerosis.
    Type: Application
    Filed: August 13, 2012
    Publication date: December 4, 2014
    Inventors: Rajan Anand, Vincent J. Colandrea, Maud Reiter, Petr Vachal, Aaron Zwicker, Jonathan E. Wilson, Fengqi Zhang, Kake Zhao
  • Patent number: 8436015
    Abstract: Glucagon receptor antagonist compounds of formula I are disclosed: The compounds are useful for treating type 2 diabetes and related conditions. Pharmaceutical compositions and methods of treatment are also included.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: May 7, 2013
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Songnian Lin, Christian P. Stevenson, Emma R. Parmee, Libo Xu, Xibin Liao, Edward Metzger, Rui Liang, Fengqi Zhang, John E. Stelmach
  • Publication number: 20110281795
    Abstract: Glucagon receptor antagonist compounds are disclosed. The compounds are useful for treating type 2 diabetes and related conditions. Pharmaceutical compositions and methods of treatment are also included.
    Type: Application
    Filed: January 15, 2010
    Publication date: November 17, 2011
    Inventors: Songnian Lin, Fengqi Zhang, Emma R. Parmee, Sunita V. Dewnani
  • Publication number: 20110172256
    Abstract: Glucagon receptor antagonist compounds are disclosed. The compounds are useful for treating type 2 diabetes and related conditions. Pharmaceutical compositions and methods of treatment are also included.
    Type: Application
    Filed: September 10, 2009
    Publication date: July 14, 2011
    Inventors: Songnian Lin, Christian P. Stevenson, Emma R. Parmee, Libo Xu, Xibin Liao, Edward metzger, Rui Liang, Fengqi Zhang, John E. Stelmach
  • Publication number: 20090281154
    Abstract: This invention relates to the use of potent potassium channel blockers or a formulation thereof in the treatment of glaucoma and other conditions which leads to elevated intraoccular pressure in the eye of a patient. This invention also relates to the use of such compounds to provide a neuroprotective effect to the eye of mammalian species, particularly humans.
    Type: Application
    Filed: June 7, 2007
    Publication date: November 12, 2009
    Inventors: James B. Doherty, Swaminathan R. Natarajan, Dong-Ming Shen, Fengqi Zhang
  • Publication number: 20090062280
    Abstract: This invention relates to the use of potent potassium channel blockers or a formulation thereof in the treatment of glaucoma and other conditions which leads to elevated intraocular pressure in the eye of a patient. This invention also relates to the use of such compounds to provide a neuroprotective effect to the eye of mammalian species, particularly humans.
    Type: Application
    Filed: March 9, 2007
    Publication date: March 5, 2009
    Inventors: James B. Doherty, Min Shu, Dong-Ming Shen, Fengqi Zhang
  • Publication number: 20060116366
    Abstract: The present invention relates to spirocyclic ureas, compositions containing such compounds and methods of treatment The compounds are glucagon receptor antagonists and thus are useful for treating, preventing or delaying the onset of type 2 diabetes mellitus.
    Type: Application
    Filed: November 26, 2003
    Publication date: June 1, 2006
    Inventors: Emma Parmee, Fengqi Zhang, Dong-Ming Shen, John Stelmach
  • Publication number: 20050256117
    Abstract: This invention relates to the use of potent potassium channel blockers or a formulation thereof in the treatment of glaucoma and other conditions which leads to elevated intraoccular pressure in the eye of a patient. This invention also relates to the use of such compounds to provide a neuroprotective effect to the eye of mammalian species, particularly humans.
    Type: Application
    Filed: June 11, 2003
    Publication date: November 17, 2005
    Inventors: Meng Hsin Chen, Luping Liu, Peter Meinke, Ravi Natarajan, William Parsons, Dong-Ming Shen, Min Shu, John Stelmach, Harold Wood, Fengqi Zhang, David Wisnoski, James Doherty
  • Patent number: 6642237
    Abstract: &ggr;-Hydroxy-2-(fluoroalkylaminocarbonyl)-1-piperazinepentanamide compounds are inhibitors of HIV protease and inhibitors of HIV replication. These compounds are useful in the prevention or treatment of infection by HV and the treatment of AIDS, either as compounds, pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating AIDS and methods of preventing or treating infection by HIV are also described. These compounds are effective against HIV viral mutants which are resistant to HIV protease inhibitors currently used for treating AIDS and HIV infection.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: November 4, 2003
    Assignee: Merck & Co., Inc.
    Inventors: James R. Tata, Kevin T. Chapman, Joseph Leslie Duffy, Nancy J. Kevin, Yuan Cheng, Thomas A. Rano, Fengqi Zhang, Tracy Huening, Brian Anthony Kirk, Zhijian Lu, Subharekha Raghavan, Fred J. Fleitz, Daniel E. Petrillo, Joseph D. Armstrong, III, Richard J. Varsolona, David Askin, R. Scott Hoerrner, Robert Purick