Patents by Inventor Clifford S. Labaw

Clifford S. Labaw 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: 7750036
    Abstract: The present invention relates to a salt of carvedilol and/or corresponding solvates thereof, compositions containing such carvedilol and/or corresponding solvates thereof, and/or methods of using the aforementioned compound(s) in the treatment of certain disease states in mammals, in particular man. The present invention further relates to carvedilol phosphate salts, and/or solvates thereof, which include a novel crystalline form of carvedilol dihydrogen phosphate (i.e., which is the dihydrogen phosphate salt of 1-(carbazol-4-yloxy-3-[[2-(o-methoxyphenoxy)ethyl]amino]-2-propanol) and/or carvedilol hydrogen phosphate, etc.) and/or other corresponding solvates thereof, compositions containing these carvedilol phosphate salts and/or solvates, and methods of using the aforementioned salts and/or solvates to treat hypertension, congestive heart failure and angina, etc.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: July 6, 2010
    Assignee: SB Pharmco Puerto Rico Inc.
    Inventors: Christopher S. Brook, Pingyun Y. Chen, Wei Chen, Qunying Dai, Philip C. Dell'Orco, Clifford S. Labaw, Ann Marie Diederich, Choon K. Oh, Claire Hisler, David H. Igo, Lee M. Katrincic, Li-Jen Ping, Paul G. Spoors, Jun Wang, Christopher Werner
  • Patent number: 7649010
    Abstract: The present invention relates to a salt of carvedilol, corresponding compositions containing such a carvedilol salt or corresponding solvates thereof, and/or methods of using the aforementioned compound(s) in the treatment of certain disease states in mammals, in particular man. The present invention further relates to a novel crystalline form of carvedilol hydrobromide, which is the hydrobromide salt of 1-(carbazol-4-yloxy-3-[[2-(o-methoxyphenoxy)ethyl]amino]-2-propanol, and/or other carvedilol solvates thereof, compositions containing salts or solvates of carvedilol hydrobromide, and methods of using the aforementioned compound(s) to treat hypertension, congestive heart failure, and angina, etc.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: January 19, 2010
    Assignee: SmithKline Beechman Cork Limited
    Inventors: Pingyun Y. Chen, Qunying Dai, Philip C. Dell'Orco, Claire Hisler, David H. Igo, Lee M. Katrincic, Clifford S. Labaw, Li-Jen J. Ping
  • Publication number: 20080194623
    Abstract: This invention relates to novel intermediates and processes for preparing pharmaceutically active quinoline compounds, including (?)-(S)—N-(?-ethylbenzyl)-3-hydroxy-2-phenylquinoline-4-carboxamide.
    Type: Application
    Filed: August 2, 2006
    Publication date: August 14, 2008
    Inventors: Clifford S. Labaw, Peng Liu
  • Patent number: 6172237
    Abstract: This invention relates to a process for preparing eprosartan by reacting 4-[(2-n-butyl-5-formyl-1H-imidazol-1-yl)methyl]benzoic acid or the bisulfite addition compound of 4-[(2-n-butyl-5-formyl-1H-imidazol-1-yl)methyl]benzoic acid with (2-thienylmethyl)propanedioic acid, mono-ethyl ester.
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: January 9, 2001
    Assignee: SmithKline Beecham Corporation
    Inventors: Clifford S. Labaw, Joseph Robert Flisak, Li Liu
  • Patent number: 4782163
    Abstract: New intermediates, namely 2-(2-halo-3,4-dimethoxybenzyl)-5-(4-methoxyphenyl)-oxazolidines, are prepared by a synthetic sequence which uses a Darzen's reaction in a homogeneous solvent system.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: November 1, 1988
    Assignee: SmithKline Beckman Corporation
    Inventors: Clifford S. Labaw, Alan W. Tremper
  • Patent number: 4705862
    Abstract: New intermediates, namely 2-(2-halo-3,4-dimethoxybenzyl)-5-(4-methoxyphenyl)-oxazolidines, are prepared by a synthetic sequence which uses a Darzen's reaction in a homogeneous solvent system.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: November 10, 1987
    Assignee: SmithKline Beckman Corporation
    Inventors: Clifford S. Labaw, Alan W. Tremper
  • Patent number: 4447621
    Abstract: A process for preparing cimetidine by sulfur extrusion from N-cyano-N'-methyl-N"-[2-(5-methyl-4-imidazolylmethyldithio)ethyl]guanidine .
    Type: Grant
    Filed: October 21, 1982
    Date of Patent: May 8, 1984
    Assignee: SK&F Lab Co.
    Inventors: Clifford S. Labaw, George R. Wellman
  • Patent number: 4374996
    Abstract: A process for preparing cimetidine by sulfur extrusion from N-cyano-N'-methyl-N"-[2-(5-methyl-4-imidazolylmethyldithio)ethyl]guanidine .
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: February 22, 1983
    Assignee: SK & F Lab Co.
    Inventors: Clifford S. Labaw, George R. Wellman
  • Patent number: 4321393
    Abstract: A method of preparing 2-cyanamidobenzimidazoles or 2-cyanamidobenzoxazoles comprising reacting N-cyanodiphenoxyiminocarbonate with an o-amino or o-hydroxy aniline.
    Type: Grant
    Filed: January 14, 1981
    Date of Patent: March 23, 1982
    Assignee: SmithKline Corporation
    Inventors: Clifford S. Labaw, Robert L. Webb
  • Patent number: 4285878
    Abstract: N-Phenyl-N'-cyano-O-phenylisoureas are prepared from N-cyanodiphenoxyimidocarbonate and an optionally substituted o-phenylenediamine or o-aminophenol. The isoureas are new chemical intermediates especially useful for preparing 2-cyanamido and 2-carbomethoxyaminobenzimidazole and benzoxazole compounds having anthelmintic activity.
    Type: Grant
    Filed: January 31, 1980
    Date of Patent: August 25, 1981
    Assignee: SmithKline Corporation
    Inventors: Clifford S. Labaw, Robert L. Webb
  • Patent number: 4163858
    Abstract: New imidazolemethylphosphonium salts having a degradable group at the 2-position which are useful intermediates for preparing histamine H.sub.2 antagonists. This invention concerns the preparation of imidazolemethylphosphonium salts having no substituent at the 2-position by heating the compounds referred to above.
    Type: Grant
    Filed: March 8, 1978
    Date of Patent: August 7, 1979
    Assignee: SK&F Lab Co.
    Inventors: Clifford S. Labaw, Robert L. Webb, George R. Wellman
  • Patent number: 4139708
    Abstract: New imidazolemethylphosphonium salts having a degradable group at the 2-position which are useful intermediates for preparing histamine H.sub.2 antagonists.
    Type: Grant
    Filed: March 8, 1978
    Date of Patent: February 13, 1979
    Assignee: SK&F Lab Co.
    Inventors: Clifford S. Labaw, Robert L. Webb, George R. Wellman