Patents by Inventor Bruce A. Lefker

Bruce A. Lefker 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).

  • Publication number: 20230331720
    Abstract: The present disclosure relates to compounds of Formula (I?): and to their prodrugs, pharmaceutically acceptable salts, pharmaceutical compositions, methods of use, and methods for their preparation. The compounds disclosed herein are useful for modulating orexin-2 receptor activity and may be used in the treatment of disorders in which orexin-2 receptor activity is implicated, such as narcolepsy, a hypersomnia disorder, a neurodegenerative disorder, a symptom of a rare genetic disorder, a mental health disorder, a metabolic syndrome, osteoporosis, cardiac failure, coma, or facilitating emergence from anaesthesia.
    Type: Application
    Filed: September 3, 2021
    Publication date: October 19, 2023
    Inventors: Bruce LEFKER, Gordon SAXTY, Karl GIBSON, Mark PICKWORTH, Matthew SPENDIFF, Miles Stuart CONGREVE, Paul HUMPHRIES
  • Publication number: 20230271973
    Abstract: The present disclosure relates to compounds of Formula (I?): and to their prodrugs, pharmaceutically acceptable salts, pharmaceutical compositions, methods of use, and methods for their preparation. The compounds disclosed herein are useful for modulating orexin receptor activity and may be used in the treatment of disorders in which orexin receptor activity is implicated, such as narcolepsy, a hypersomnia disorder, a neurodegenerative disorder, a symptom of a rare genetic disorder, a mental health disorder, a metabolic syndrome, osteoporosis, cardiac failure, coma, or a complication in emergence from anaesthesia.
    Type: Application
    Filed: September 3, 2021
    Publication date: August 31, 2023
    Inventors: Bruce LEFKER, Karl GIBSON, Matthew SPENDIFF, Paul HUMPHRIES, Sarah BUCKNELL, Wojciech ZAWODNY, Roderick Alan PORTER
  • Patent number: 8383660
    Abstract: Dibenzyl amine compounds and derivatives of Formula I, pharmaceutical compositions containing such compounds and the use of such compounds to elevate certain plasma lipid levels, including high density lipoprotein-cholesterol and to lower certain other plasma lipid levels, such as LDL-cholesterol and triglycerides and accordingly to treat diseases which are exacerbated by low levels of HDL cholesterol and/or high levels of LDL-cholesterol and triglycerides, such as atherosclerosis and cardiovascular diseases in some mammals, including humans.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: February 26, 2013
    Assignee: Pfizer Inc.
    Inventors: George Chang, Ravi S. Garigipati, Bruce Lefker, David A. Perry
  • Patent number: 7919506
    Abstract: Dibenzyl amine compounds and derivatives, pharmaceutical compositions containing such compounds and the use of such compounds to elevate certain plasma lipid levels, including high density lipoprotein-cholesterol and to lower certain other plasma lipid levels, such as LDL-cholesterol and triglycerides and accordingly to treat diseases which are exacerbated by low levels of HDL cholesterol and/or high levels of LDL-cholesterol and triglycerides, such as atherosclerosis and cardiovascular diseases in some mammals, including humans.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: April 5, 2011
    Assignee: Pfizer Inc.
    Inventors: George Chang, Ravi S. Garigipati, Bruce Lefker, David A. Perry, Dongxiang Zeng
  • Publication number: 20100292205
    Abstract: The invention pertains to pyrimidone compounds that serve as effective GSK-3 inhibitors. The invention further relates to pharmaceutical compositions and methods comprising such pyrimidone compounds; and the use of such compounds for treating certain disorders.
    Type: Application
    Filed: August 13, 2007
    Publication date: November 18, 2010
    Applicant: PFIZER INC.
    Inventors: Bruce A. Lefker, Michael A. Brodney, Subas M. Sakya, Bruce A. Hay, Matthew D. Wessel, Edward L. Conn
  • Publication number: 20100285145
    Abstract: Compounds of Formula (I) that modulate the activity of the G-protein-coupled receptor GPR119 and their uses in the treatment of diseases linked to the modulation of the G-protein-coupled receptor GPR119 in animals are described herein.
    Type: Application
    Filed: May 6, 2010
    Publication date: November 11, 2010
    Inventors: Etzer Darout, Michael P. DeNinno, Kentaro Futatsugi, Cristiano Guimaraes, Bruce A. Lefker, Vincent Mascitti, Kim F. McClure, Michael J. Munchhof, Ralph P. Robinson
  • Patent number: 7799823
    Abstract: The present invention is directed to a new class of benzonitriles and to their use as androgen receptor modulators. Other aspects of the invention are directed to the use of these compounds to decrease excess sebum secretions and to stimulate hair growth.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: September 21, 2010
    Assignee: Warner-Lambert Company LLC
    Inventors: Stephen Douglas Barrett, Victor Fedij, Lain-Yen Hu, Donna M Iula, Bruce A Lefker, Raj Kumar Raheja, Karen Sexton, Jennifer Ann Van Camp
  • Patent number: 7674819
    Abstract: The present invention is directed to a new class of benzonitriles and to their use as androgen receptor modulators. Other aspects of the invention are directed to the use of these compounds to decrease excess sebum secretions and to stimulate hair growth.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: March 9, 2010
    Assignee: Warner-Lambert Company LLC
    Inventors: Stephen Douglas Barrett, Victor Fedij, Lain-Yen Hu, Donna M. Iula, Bruce A. Lefker, Raj Kumar Raheja, Karen Sexton, Jennifer Ann Van Camp
  • Patent number: 7670613
    Abstract: The present invention is directed to a new class of 4-cycloalkoxy benzonitriles and to their use as androgen receptor modulators. Other aspects of the invention are directed to the use of these compounds to decrease excess sebum secretions and to stimulate hair growth.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: March 2, 2010
    Assignee: Pfizer Inc.
    Inventors: Lain-Yen Hu, Bruce A. Lefker, Daniel Y. Du, Yvonne Dorothy Smith, Huangshu Lei, William Glen Harter, Victoria Leigh Downs, Mark L. Boys, Donna Michele Iula
  • Publication number: 20100048517
    Abstract: The present invention is directed to a new class of 4-cycloalkoxy benzonitriles and to their use as androgen receptor modulators. Other aspects of the invention are directed to the use of these compounds to decrease excess sebum secretions and to stimulate hair growth.
    Type: Application
    Filed: November 5, 2009
    Publication date: February 25, 2010
    Inventors: Lain-Yen Hu, Bruce A. Lefker, Daniel Y. Du, Yvonne Dorothy Smith, Huangshu Lei, William Glen Harter, Victoria Leigh Downs, Mark L. Boys, Donna Michele Iula
  • Publication number: 20090239865
    Abstract: Dibenzyl amine compounds and derivatives, pharmaceutical compositions containing such compounds and the use of such compounds to elevate certain plasma lipid levels, including high density lipoprotein-cholesterol and to lower certain other plasma lipid levels, such as LDL-cholesterol and triglycerides and accordingly to treat diseases which are exacerbated by low levels of HDL cholesterol and/or high levels of LDL-cholesterol and triglycerides, such as atherosclerosis and cardiovascular diseases in some mammals, including humans.
    Type: Application
    Filed: November 21, 2005
    Publication date: September 24, 2009
    Inventors: George Chang, Mary Didiuk, Peter Dorff, Ravi Garigipati, Wenhua Jiao, Bruce Lefker, David Perry, Roger Ruggeri, Toby Underwood
  • Patent number: 7576128
    Abstract: The present invention is directed to a new class of 4-oxo-benzonitriles, their use as androgen modulators, and to their use in the treatment of alopecia.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: August 18, 2009
    Assignee: Pfizer Inc.
    Inventors: Lain-Yen Hu, Huangshu Lei, Daniel Y. Du, Bruce A. Lefker
  • Publication number: 20090192202
    Abstract: The present invention is directed to a new class of 4-cyano-phenoxy-alkyl carboxyl derivatives and to their use as androgen receptor modulators. Other aspects of the invention are directed to the use of these compounds to decrease excess sebum secretions and to stimulate hair growth.
    Type: Application
    Filed: February 9, 2009
    Publication date: July 30, 2009
    Inventors: Lain-Yen Hu, Huangshu Lei, Daniel Y. Du, Bruce A. Lefker, Yvonne Dorothy Smith, Victor Fedij
  • Patent number: 7507860
    Abstract: The present invention is directed to a new class of 4-cyano-phenoxy-alkyl carboxyl derivatives and to their use as androgen receptor modulators. Other aspects of the invention are directed to the use of these compounds to decrease excess sebum secretions and to stimulate hair growth.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: March 24, 2009
    Assignee: Pfizer Inc.
    Inventors: Lain-Yen Hu, Huangshu Lei, Daniel Y. Du, Bruce A. Lefker, Yvonne Dorothy Smith, Victor Fedij
  • Patent number: 7507732
    Abstract: 6,7-Dihydro-5H-cyclopenta[b]pyridine and 5,6,7,8-tetrahydroquinoline compounds of Formula (I), including salts, hydrates and solvates thereof, that act as 5-HT2 receptor ligands and their uses in the treatment of diseases linked to the activation of 5-HT2c receptors are described herein.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: March 24, 2009
    Assignee: Pfizer Inc.
    Inventors: Bruce A. Lefker, Kevin K. -C. Liu, Hou Chen, Steven Blair Coffey
  • Patent number: 7473711
    Abstract: The present invention is directed to a class of 4-cyano-phenoxy derivatives of formula I and to their use as androgen receptor modulators. Other aspects of the invention are directed to the use of these compounds to decrease excess sebum secretions and to stimulate hair growth.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: January 6, 2009
    Assignee: Pfizer Inc.
    Inventors: Lain-Yen Hu, Huangshu Lei, Daniel Y. Du, Bruce A. Lefker
  • Patent number: 7442702
    Abstract: This invention relates to prostaglandin agonists, methods of using such prostaglandin agonists, pharmaceutical compositions containing such prostaglandin agonists and kits containing such prostaglandin agonists. The prostaglandin agonists are useful for the treatment of bone disorders including osteoporosis.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: October 28, 2008
    Assignee: Pfizer Inc.
    Inventors: Kimberly O. Cameron, Bruce A. Lefker, Robert L. Rosati
  • Patent number: 7414071
    Abstract: The present invention provides a method of treating hypertension, liver failure, loss of patency of ductus arteriosus, glaucoma or ocular hypertension in a patient, comprising administering to the patient a therapeutically effective amount of a selective EP4 receptor agonist of Formula I or a prodrug thereof, a pharmaceutically acceptable salt of the selective EP4 receptor agonist or prodrug or a stereoisomer or diastereomeric mixture of the EP4 receptor agonist, prodrug or salt, wherein the variables X, Z, Q, , and R2 are as defined in the specification.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: August 19, 2008
    Assignee: Pfizer Inc.
    Inventors: Kimberly O. Cameron, Bruce A. Lefker, Delvin R. Knight, Jr.
  • Publication number: 20080064745
    Abstract: The present invention is directed to the compound 4-(2-methoxy-phenoxy)-2-trifluoromethyl-benzonitrile, is use as an androgen modulator and to pharmaceutical compositions containing this compound.
    Type: Application
    Filed: August 5, 2005
    Publication date: March 13, 2008
    Applicant: WARNER-LAMBERT COMPANY LLC
    Inventors: Bruce Lefker, Yvonne Smith
  • Publication number: 20080045504
    Abstract: This invention relates to novel amino substituted benzonitrile derivatives and to pharmaceutical compositions containing the novel amino substituted benzonitrile derivatives. This invention also relates to methods of treatment using amino substituted benzonitrile derivatives to prevent and/or restore age-related decline in muscle mass and strength, treat a wasting disease, treat a condition that prevents with low bone mass, increase muscle mass, increase lean body mass, decrease fat body mass, and treat bone fracture and muscle damage in mammals, including humans.
    Type: Application
    Filed: April 29, 2005
    Publication date: February 21, 2008
    Applicant: PFIZER PRODUCTS INC.
    Inventors: Thomas Gant, Bruce Lefker, Hua Ke, James O'Malley, Roger Hill