Patents by Inventor William E. Stewart, II

William E. Stewart, II 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).

  • Stabilization of human interferon
    Patent number: 5431909
    Abstract: The invention relates to methods for stabilizing human interferon, including pharmaceutical compositions useful in topical applications for the treatment of disorders such as Condyloma acuminata. Amine stabilizing agents such as primary aliphatic amines and anionic stabilizing agents such as lithium organo sulfates protect human interferons from degradation and provide enhanced storage stability. These stabilizing agents containing interferon can be added to appropriate pharmaceutical carriers for topical applications. The topical products also exhibit enhanced storage stability.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: July 11, 1995
    Assignee: Dallas Biotherapeutics, Inc.
    Inventor: William E. Stewart, II
  • Stabilization of human interferon
    Patent number: 5236707
    Abstract: Described herein are compositions for stabilizing human interferon, including pharmaceutical preparations useful in topical applications. Amine stabilizing agents such as primary aliphatic amines and anionic stabilizing agents such as lithium organo sulfates protect human interferons from degradation and provide enhanced storage stability. These stabilizing agents containing interferon can be added to appropriate pharmaceutical carriers for topical applications. The topical products also exhibit enhanced storage stability.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: August 17, 1993
    Assignee: Dallas Biotherapeutics, Inc.
    Inventor: William E. Stewart, II