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: 20070213371
    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: January 3, 2007
    Publication date: September 13, 2007
    Inventors: George Chang, Ravi S. Garigipati, Bruce Lefker, David A. Perry, Dongxiang Zeng
  • Publication number: 20070213314
    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: January 3, 2007
    Publication date: September 13, 2007
    Inventors: George Chang, Ravi S. Garigipati, Bruce Lefker, David A. Perry
  • Publication number: 20070197642
    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: Application
    Filed: April 15, 2005
    Publication date: August 23, 2007
    Inventors: Lain-Yen Hu, Huangshu Lei, Daniel Du, Bruce Lefker
  • Publication number: 20070197641
    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: April 1, 2005
    Publication date: August 23, 2007
    Inventors: Lain-Yen Hu, Huangshu Lei, Daniel Du, Bruce Lefker, Yvonne Smith, Victor Fedij
  • Publication number: 20070072936
    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: Application
    Filed: November 7, 2006
    Publication date: March 29, 2007
    Applicant: WARNER-LAMBERT COMPANY LLC
    Inventors: Stephen Barrett, Victor Fedij, Lain-Yen Hu, Donna Iula, Bruce Lefker, Raj Raheja, Karen Sexton, Jennifer Van Camp
  • Patent number: 7192979
    Abstract: This invention is directed to EP4 receptor selective prostaglandin agonists of the Formula I, wherein R2, X, Z and Q are as defined in the specification. This invention is also directed to pharmaceutical compositions containing those compounds. This invention is also directed to methods of treating conditions which present with low bone mass, particularly osteoporosis, frailty, an osteoporotic fracture, a bone defect, childhood idiopathic bone loss, alveolar bone loss, mandibular bone loss, bone fracture, osteotomy, bone loss associated with periodontitis, or prosthetic ingrowth in a mammal comprising administering those compounds.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: March 20, 2007
    Assignee: Pfizer Inc.
    Inventors: Kimberly O. Cameron, Bruce A. Lefker
  • Publication number: 20060252796
    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: Application
    Filed: May 2, 2006
    Publication date: November 9, 2006
    Inventors: Stephen Barrett, Victor Fedij, Lain-Yen Hu, Donna Iula, Bruce Lefker, Raj Raheja, Karen Sexton, Jennifer Van Camp
  • Publication number: 20060247254
    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: Application
    Filed: March 31, 2006
    Publication date: November 2, 2006
    Inventors: Bruce Lefker, Kevin Liu, Hou Chen, Steven Coffey
  • Patent number: 6998423
    Abstract: 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: August 29, 2003
    Date of Patent: February 14, 2006
    Assignee: Pfizer Inc.
    Inventors: Kimberly O. Cameron, Hua Z. Ke, Bruce A. Lefker, Robert L. Rosati, David D. Thompson
  • Publication number: 20060009427
    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: July 5, 2005
    Publication date: January 12, 2006
    Inventors: Lain-Yen Hu, Bruce Lefker, Daniel Du, Yvonne Smith, Huangshu Lei, William Harter, Victoria Downs, Mark Boys, Donna Iula
  • Publication number: 20050182132
    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: Application
    Filed: February 8, 2005
    Publication date: August 18, 2005
    Inventors: Lain-Yen Hu, Huangshu Lei, Daniel Du, Bruce Lefker
  • Patent number: 6852863
    Abstract: The present invention relates to metabolites of (3-{[4-tert-butyl-benzyl)-(pyridine-3-sulfonyl)-amino]-methyl}-phenoxy)-acetic acid.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: February 8, 2005
    Assignee: Pfizer Inc.
    Inventors: Kimberly O. Cameron, Kim A. Johnson, Bruce A. Lefker, Chandra A. Prakash
  • Publication number: 20040259921
    Abstract: This invention is directed to EP4 receptor selective prostaglandin agonists of the Formula I, 1
    Type: Application
    Filed: September 23, 2003
    Publication date: December 23, 2004
    Applicant: Pfizer Inc
    Inventors: Kimberly O. Cameron, Bruce A. Lefker
  • Publication number: 20040192685
    Abstract: This invention relates to compounds useful for treating or preventing obesity, breast cancer, osteoporosis, endometriosis, cardiovascular disease, prostatic disease, and the like, and to pharmaceutical composition, methods, and kits comprising such compounds.
    Type: Application
    Filed: April 8, 2004
    Publication date: September 30, 2004
    Inventors: Kimberly O. Cameron, Richard Chesworth, Paul A. DaSilva-Jardine, Robert F. Day, Bruce A. Lefker, Michael P. Zawistoski
  • Publication number: 20040176461
    Abstract: 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: Application
    Filed: August 29, 2003
    Publication date: September 9, 2004
    Applicant: Pfizer Inc
    Inventors: Kimberly O. Cameron, Hua Z. Ke, Bruce A. Lefker, Robert L. Rosati, David D. Thompson
  • Patent number: 6747054
    Abstract: This invention is directed to EP4 receptor selective prostaglandin agonists of the Formula I, wherein R2, X, Z and Q are as defined in the specification. This invention is also directed to pharmaceutical compositions containing those compounds. This invention is also directed to methods of treating conditions which present with low bone mass, particularly osteoporosis, frailty, an osteoporotic fracture, a bone defect, childhood idiopathic bone loss, alveolar bone loss, mandibular bone loss, bone fracture, osteotomy, bone loss associated with periodontitis, or prosthetic ingrowth in a mammal comprising administering those compounds.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: June 8, 2004
    Assignee: Pfizer Inc.
    Inventors: Kimberly O. Cameron, Bruce A. Lefker
  • Patent number: 6737437
    Abstract: This invention is directed to methods of treating conditions which present with low bone mass, particularly osteoporosis, frailty, an osteoporotic fracture, a bone defect, childhood idiopathic bone loss, alveolar bone loss, mandibular bone loss, bone fracture, osteotomy, bone loss associated with periodontitis, or prosthetic ingrowth comprising administering prostaglandin agonists which are EP4 receptor selective prostaglandin agonists. This invention is especially directed to those methods wherein the EP4 receptor selective agonist is a compound of Formula I: wherein the variables are as defined in the specification.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: May 18, 2004
    Assignee: Pfizer Inc.
    Inventors: Kimberly O. Cameron, HuaZhu Ke, Bruce A. Lefker, David D. Thompson
  • Publication number: 20030220494
    Abstract: This invention relates to compounds useful for treating or preventing obesity, breast cancer, osteoporosis, endometriosis, cardiovascular disease, prostatic disease, and the like, and to pharmaceutical composition, methods, and kits comprising such compounds.
    Type: Application
    Filed: April 2, 2003
    Publication date: November 27, 2003
    Inventors: Kimberly O. Cameron, Richard Chesworth, Paul A. DaSilva-Jardine, Robert F. Day, Bruce A. Lefker, Michael P. Zawistoski
  • Publication number: 20030216445
    Abstract: The present invention relates to metabolites of (3-{[4-tert-butyl-benzyl)-(pyridine-3-sulfonyl)-amino]-methyl}-phenoxy)-acetic acid.
    Type: Application
    Filed: January 29, 2003
    Publication date: November 20, 2003
    Inventors: Kimberly O. Cameron, Kim A. Johnson, Bruce A. Lefker, Chandra A. Prakash
  • Patent number: 6649657
    Abstract: 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 26, 2002
    Date of Patent: November 18, 2003
    Assignee: Pfizer Inc.
    Inventors: Kimberly O. Cameron, Hua Z. Ke, Bruce A. Lefker, Robert L. Rosati, David D. Thompson