Patents by Inventor James R. Piggott

James R. Piggott 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: 6268367
    Abstract: Piperazine derivatives useful in treating osteoporosis, bone fracture or deficiency, primary or secondary hyperparathyroidism, periodontal disease or defect, metastatic bone disorder, osteolytic bone disease, post-plastic surgery, post-prosthetic joint surgery and post-dental implantation.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: July 31, 2001
    Assignee: Zymogenetics, Inc.
    Inventor: James R. Piggott
  • Patent number: 5677334
    Abstract: Glucagon antagonists and methods relating thereto are disclosed. The glucagon antagonists include skyrin and skyrin analogs, and serve to inhibit the stimulation of a glucagon-induced response pathway, such as the adenylate cyclase response pathway or the inositol phosphate response pathway. The glucagon antagonists may be used within therapeutic compositions to treat disease states associate with elevated glucose levels, including diabetes and hyperglycemia. The present invention also discloses a biologically pure culture of ATCC accession number 74200, as well as methods relating to the production of glucagon antagonists by cultivating the same in a nutrient medium and recovering the glucagon antagonist therefrom.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: October 14, 1997
    Assignee: ZymoGenetics, Inc.
    Inventors: Robert R. West, Virender Labroo, James R. Piggott, Robert A. Smith, Patricia A. McKernan
  • Patent number: 5583143
    Abstract: Methods and pharmaceutical compositions for use in inhibiting calmodulin activity in a patient are disclosed. 2,3-diaryl-1-benzopyrans and their pharmaceutically acceptable salts are formulated into medicaments, including oral and topical medicaments, which are administered to a patient in need of treatment of a non-estrogen dependent condition.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: December 10, 1996
    Assignee: ZymoGenetics, Inc.
    Inventors: Virender M. Labroo, James R. Piggott
  • Patent number: 5552413
    Abstract: Methods and pharmaceutical compositions for the treatment of dermatitis are disclosed. 2,3-diaryl-1-benzopyrans and their pharmaceutically acceptable salts are formulated into medicaments, including oral and topical medicaments, which are administered to a patient suffering from dermatitis. The methods and compositions are particularly useful in the treatment of conditions characterized by hyperproliferation of keratinocytes, such as psoriasis.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: September 3, 1996
    Assignee: ZymoGenetics, Inc.
    Inventors: Virender M. Labroo, James R. Piggott
  • Patent number: 5510459
    Abstract: Methods for detecting glucagon antagonists through the use of recombinant DNA techniques are provided. Briefly, subsequent to the expression of glucagon analogs within suitable host cells, the analogs are exposed to a glucagon receptor coupled to a response pathway in the presence of native glucagon. A reduction in the stimulation of the response pathway resulting from the binding of the glucagon analog to the glucagon receptor relative to the stimulation of the response pathway by native glucagon alone indicates the presence of a glucagon antagonist. Glucagon antagonists identified and isolated through the methods are also provided.
    Type: Grant
    Filed: August 27, 1992
    Date of Patent: April 23, 1996
    Assignee: ZymoGenetics, Inc.
    Inventors: Robert A. Smith, James R. Piggott
  • Patent number: 5508304
    Abstract: Glucagon antagonists and methods relating thereto are disclosed. The glucagon antagonists include skyrin and skyrin analogs, and serve to inhibit the stimulation of a glucagon-induced response pathway, such as the adenylate cyclase response pathway or the inositol phosphate response pathway. The glucagon antagonists may be used within therapeutic compositions to treat disease states associate with elevated glucose levels, including diabetes and hyperglycemia. The present invention also discloses a biologically pure culture of ATCC accession number 74200, as well as methods relating to the production of glucagon antagonists by cultivating the same in a nutrient medium and recovering the glucagon antagonist therefrom.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: April 16, 1996
    Assignee: ZymoGenetics, Inc.
    Inventors: Robert R. West, Virender Labroo, James R. Piggott, Robert A. Smith, Patricia A. McKernan
  • Patent number: 5480903
    Abstract: A method for inhibiting is disclosed comprising administering, 3,4-diarylchromans and their pharmaceutically acceptable salts.
    Type: Grant
    Filed: April 17, 1994
    Date of Patent: January 2, 1996
    Assignee: ZymoGenetics, Inc.
    Inventor: James R. Piggott
  • Patent number: 5464862
    Abstract: Methods and pharmaceutical compositions for reducing bone loss are disclosed. 3,4-diarylchromans and their pharmaceutically acceptable salts are formulated into medicaments for the treatment of bone loss due to osteoporosis or other conditions. An exemplary 3,4-diarylchroman is centchroman (3,4-trans-2,2-dimethyl-3-phenyl-4-[p-(beta-pyrrolidinoethoxy)phenyl]-7-me thoxychroman). Formulations include tablets and other forms suitable for oral administration and controlled-release subdermal implants.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: November 7, 1995
    Assignee: ZymoGenetics, Inc.
    Inventors: Virender M. Labroo, James R. Piggott, Steven D. Bain
  • Patent number: 5451603
    Abstract: Methods for the treatment of dermatitis are disclosed wherein 3,4-diarylchromans and their pharmaceutically acceptable salts are formulated into medicaments, including oral and topical medicaments, and are administered to a patient suffering from dermatitis.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: September 19, 1995
    Assignee: ZymoGenetics, Inc.
    Inventor: James R. Piggott
  • Patent number: 5416098
    Abstract: Methods and pharmaceutical compositions for the treatment of dermatitis are disclosed. 2,3-diaryl-1-benzopyrans and their pharmaceutically acceptable salts are formulated into medicaments, including oral and topical medicaments, which are administered to a patient suffering from dermatitis. The methods and compositions are particularly useful in the treatment of conditions characterized by hyperproliferation of keratinocytes, such as psoriasis.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: May 16, 1995
    Assignee: ZymoGenetics, Inc.
    Inventors: Virender M. Labroo, James R. Piggott
  • Patent number: 5408037
    Abstract: Methods for detecting glucagon antagonists through the use of recombinant DNA techniques are provided. Briefly, subsequent to the expression of glucagon analogs within suitable host cells, the analogs are exposed to a glucagon receptor coupled to a response pathway in the presence of native glucagon. A reduction in the stimulation of the response pathway resulting from the binding of the glucagon analog to the glucagon receptor relative to the stimulation of the response pathway by native glucagon alone indicates the presence of a glucagon antagonist. Glucagon antagonists identified and isolated through the methods are also provided.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: April 18, 1995
    Assignee: ZymoGenetics, Inc.
    Inventors: Robert A. Smith, James R. Piggott
  • Patent number: 5280040
    Abstract: Methods and pharmaceutical compositions for reducing bone loss are disclosed. 3,4-diarylchromans and their pharmaceutically acceptable salts are formulated into medicaments for the treatment of bone loss due to osteoporosis or other conditions. An exemplary 3,4-diarylchroman is centchroman (3,4-trans-2,2-dimethyl-3-phenyl-4-[p-(beta-pyrrolidinoethoxy)phenyl]-7-me thoxy-chroman). Formulations include tablets and other forms suitable for oral administration and controlled-release subdermal implants.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: January 18, 1994
    Assignee: ZymoGenetics, Inc.
    Inventors: Virender M. Labroo, James R. Piggott, Steven D. Bain