Patents by Inventor Sylvester Klutchko

Sylvester Klutchko 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: 7022711
    Abstract: This invention provides antiangiogenic compounds of the Formula (I), which are useful for treating diseases, resulting from uncontrolled cellular proliferation such as cancer, atherosclerosis, rheumatoid arthritis, and psoriasis.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: April 4, 2006
    Assignee: Warner-Lambert Company
    Inventors: James Marino Hamby, Sylvester Klutchko, James Bernard Kramer
  • Publication number: 20030220345
    Abstract: This invention provides antiangiogenic compounds of the Formula (I), which are useful for treating diseases, resulting from uncontrolled cellular proliferation such as cancer, atherosclerosis, rheumatoid arthritis, and psoriasis.
    Type: Application
    Filed: February 4, 2003
    Publication date: November 27, 2003
    Inventors: James Marino Hamby, Sylvester Klutchko, James Bernard Kramer
  • Patent number: 5733914
    Abstract: 6-Aryl pyrido?2,3-d!pyrimidine 7-imines, 7-ones, and 7-thiones are inhibitors of protein tyrosine kinases, and are thus useful in treating cellular proliferation mediated thereby. The compounds are especially useful in treating cancer, atherosclerosis, restenosis, and psoriasis.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: March 31, 1998
    Assignee: Warner-Lambert Company
    Inventors: Clifton John Blankley, Diane Harris Boschelli, Annette Marian Doherty, James Marino Hamby, Sylvester Klutchko, Robert Lee Panek
  • Patent number: 5658943
    Abstract: Novel antagonists of endothelin are described, as well as novel intermediates used in their preparation, methods for the preparation and pharmaceutical compositions of the same, which are useful in treating elevated levels of endothelin, essential, renovascular, malignant and pulmonary hypertension, cerebral infarction, myocardial ischemia, cerebral ischemia, congestire heart failure and subarachnoid hemorrhage.
    Type: Grant
    Filed: January 5, 1995
    Date of Patent: August 19, 1997
    Assignee: Warner-Lambert Company
    Inventors: Kent Alan Berryman, Xue-Min Cheng, Annette Marian Doherty, Jeremy John Edmunds, Sylvester Klutchko
  • Patent number: 5620981
    Abstract: 6-Aryl pyrido[2,3-d]pyrimidine 7-imines, 7-ones, and 7-thiones are inhibitors of protein tyrosine kinases, and are thus useful in treating cellular proliferation mediated thereby. The compounds are especially useful in treating cancer, atherosclerosis, restenosis, and psoriasis.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: April 15, 1997
    Assignee: Warner-Lambert Company
    Inventors: Clifton J. Blankley, Diane H. Boschelli, Annette M. Doherty, James M. Hamby, Sylvester Klutchko, Robert L. Panek
  • Patent number: 5525614
    Abstract: This invention relates to novel substituted 1,2,3,4-tetrahydroisoquinolines which are useful in the treatment of vascular restenosis, various disorders of the central nervous system, in the regulation of female reproductive functions, in cognitive enhancement, in atherosclerosis and in treating excessive AVP secretory disorders. Novel intermediates useful in the preparation of the compounds are also disclosed. Methods of using the compounds and pharmaceutical compositions containing them are disclosed.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: June 11, 1996
    Assignee: Warner-Lambert Company
    Inventors: Clifton J. Blankley, John C. Hodges, Sylvester Klutchko
  • Patent number: 5489686
    Abstract: This invention relates to novel substituted 1,2,3,4-tetrahydroisoquinolines which are useful in the treatment of vascular restenosis, various disorders of the central nervous system, in the regulation of female reproductive functions, in cognitive enhancement, in atherosclerosis and in treating excessive AVP secretory disorders. Novel intermediates useful in the preparation of the compounds are also disclosed. Methods of using the compounds and pharmaceutical compositions containing them are disclosed.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: February 6, 1996
    Assignee: Warner-Lambert Company
    Inventors: Clifton J. Blankley, John C. Hodges, Sylvester Klutchko
  • Patent number: 5436260
    Abstract: Substituted 1-benzylimidazole-5-methylidene hydantoins are disclosed as well as methods of preparing them, pharmaceutical compositions containing them, and methods of using them. Intermediates useful in the preparation of the compounds of the invention are also disclosed and synthetic methods for preparing the novel intermediates. The compounds are useful as antagonists of angiotensin II and thus are useful in the control of hypertension, hyperaldosteronism, congestive heart failure, surgically induced vascular smooth muscle proliferation, and glaucoma.
    Type: Grant
    Filed: January 4, 1994
    Date of Patent: July 25, 1995
    Assignee: Warner-Lambert Company
    Inventors: John C. Hodges, Sylvester Klutchko
  • Patent number: 5350757
    Abstract: This invention relates to novel substituted 1,2,3,4-tetrahydroisoquinolines which are useful the treatment of vascular restenosis, various disorders of the central nervous system, in the regulation of female reproductive functions, in cognitive enhancement, in atherosclerosis and in treating excessive AVP secretory disorders. Novel intermediates useful in the preparation of the compounds are also disclosed. Methods of using the compounds and pharmaceutical compositions containing them are disclosed.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: September 27, 1994
    Assignee: Warner-Lambert Company
    Inventors: Clifton J. Blankley, John C. Hodges, Sylvester Klutchko
  • Patent number: 5308853
    Abstract: Substituted 1-benzylimidazole-5-methylidene hydantoins are disclosed as well as methods of preparing them, pharmaceutical compositions containing them, and method of using them. Intermediates useful in the preparation of the compounds of the invention are also disclosed and synthetic methods for preparing the novel intermediates. The compounds are useful as antagonists of angiotensin II and thus are useful in the control of hypertension, hyperaldosteronism, congestive heart failure, surgically induced vascular smooth muscle proliferation, and glaucoma.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: May 3, 1994
    Assignee: Warner-Lambert Company
    Inventors: John C. Hodges, Sylvester Klutchko
  • Patent number: 5246943
    Abstract: This invention relates to novel substituted 1,2,3,4-tetrahydroisoquinolines which are useful in the treatment of vascular restenosis, various disorders of the central nervous system, in the regulation of female reproductive functions, in cognitive enhancement, in atherosclerosis and in treating excessive AVP secretory disorders. Novel intermediates useful in the preparation of the compounds are also disclosed. Methods of using the compounds and pharmaceutical compositions containing them are disclosed.
    Type: Grant
    Filed: May 19, 1992
    Date of Patent: September 21, 1993
    Assignee: Warner-Lambert Company
    Inventors: Clifton J. Blankley, John C. Hodges, Sylvester Klutchko
  • Patent number: 5198426
    Abstract: The invention concerns novel renin-inhibitory peptides which are useful for treating renin-associated hypertension, congestive heart failure, hyperaldosteronism, glaucoma and diseases caused by retroviruses. Processes for preparing the peptides novel intermediates in the processes, compositions containing them, and methods of using them are included. Also included is a diagnostic method which uses the compounds to determine the presence of renin-associated hypertension, or hyperaldosteronism.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: March 30, 1993
    Assignee: Warner-Lambert Company
    Inventors: James M. Hamby, John C. Hodges, Sylvester Klutchko
  • Patent number: 5061808
    Abstract: An improved process for the preparation of statine, the phenyl analog of statine, the cyclohexyl analog of statine and derivatives thereof is described, as well as other valuable intermediates used in the process.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: October 29, 1991
    Assignee: Warner-Lambert Company
    Inventors: John C. Hodges, Sylvester Klutchko
  • Patent number: 4876343
    Abstract: An improved process for the preparation of statine, the phenyl analog of statine, the cyclohexyl analog of statine and derivatives thereof is described, as well as other valuable intermediates used in the process.
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: October 24, 1989
    Assignee: Warner-Lambert Company
    Inventors: John C. Hodges, Sylvester Klutchko
  • Patent number: 4344949
    Abstract: Substituted acyl derivatives of 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acids and the pharmaceutically acceptable salts thereof are produced by coupling a suitably substituted 1,2,3,4-tetrahydroisoquinoline with a suitably substituted amino acid and when desired hydrolyzing or removing protecting groups of the resulting product. The compounds of the invention, their salts and pharmaceutical compositions thereof are useful as antihypertensive agents.
    Type: Grant
    Filed: February 20, 1981
    Date of Patent: August 17, 1982
    Assignee: Warner-Lambert Company
    Inventors: Milton L. Hoefle, Sylvester Klutchko
  • Patent number: 4196128
    Abstract: 3-cyanochromones having the following structural formula I: ##STR1## wherein R represents hydrogen, halogen or lower alkoxy, are prepared by dehydrating chromone-3-carboxamides with thionyl chloride in N,N-dimethylformamide. The compound having formula I is useful as an anti-allergic and anti-secretory agent.
    Type: Grant
    Filed: December 13, 1978
    Date of Patent: April 1, 1980
    Assignee: Warner-Lambert Company
    Inventor: Sylvester Klutchko
  • Patent number: 4116971
    Abstract: There is described 3-(1H-tetrazol-5-yl)chromones having the following structural formula: ##STR1## in which R is lower alkoxy having 1 to 3 carbon atoms, aryl such as phenyl, halogen or trihalo lower alkyl. These compounds exhibit anti-allergic properties and are indicated in the treatment of allergic conditions such as hay fever and asthma.
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: September 26, 1978
    Assignee: Warner-Lambert Company
    Inventors: Max von Strandtmann, Marvin P. Cohen, Sylvester Klutchko, John Shavel, Jr.
  • Patent number: 4116966
    Abstract: The present invention is concerned with 11-oxo-1-benzoxepino[4,3-c]pyridines of Formula I: ##STR1## wherein R.sub.1 and R.sub.2 may be hydrogen, lower alkyl, cyano, carboxamido, carboxy, ethoxycarbonyl or tetrazolyl and R.sub.3 may be hydrogen, lower alkyl, halogen, hydroxy or lower alkoxy.These compounds are indicated in the management of allergic conditions such as bronchial asthma, hay fever and the like.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: September 26, 1978
    Assignee: Warner-Lambert Company
    Inventors: Sylvester Klutchko, Max VON Strandtmann
  • Patent number: 4098799
    Abstract: Novel 3-formylchromone derivatives are disclosed, substituted on the 5,6,7, or 8 positions by one or more of the following substituents: halogen, hydroxy, lower alkyl, lower alkoxy, lower acyl, lower acyloxy, or methylenedioxy. The corresponding 3-acetal or 3-hydrazone derivatives of the carboxaldehyde group are also disclosed. These compounds, and pharmaceutical compositions containing these compounds are useful for the treatment of allergic conditions and for the treatment of hyperacidity.
    Type: Grant
    Filed: June 19, 1974
    Date of Patent: July 4, 1978
    Assignee: Warner-Lambert Company
    Inventors: Sylvester Klutchko, Daniel Kaminsky, deceased, Maximilian VON Strandtmann
  • Patent number: 4092322
    Abstract: The present invention is concerned with 11-oxo-1-benzoxepino[4,3-c]pyridines of Formula I: ##STR1## wherein R.sub.1 and R.sub.2 may be hydrogen, lower alkyl, cyano, carboxamido, carboxy, ethoxycarbonyl or tetrazolyl and R.sub.3 may be hydrogen, lower alkyl, halogen, hydroxy or lower alkoxy.These compounds are indicated in the management of allergic conditions such as bronchial asthma, hay fever and the like.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: May 30, 1978
    Assignee: Warner-Lambert Company
    Inventors: Sylvester Klutchko, Max VON Strandtmann