Patents Represented by Attorney Albin J. Nelson

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  • 4H-1,4-Benzothiazine derivatives and intermediates thereto
    Patent number: 4399279
    Abstract: 4H-1,4 benzothiazine derivatives having anorectic activity and their preparation including intermediate compounds are disclosed.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: August 16, 1983
    Assignee: G.D. Searle & Co.
    Inventors: Robert J. Chorvat, Bipinchandra N. Desai, Suzanne E. Radak
  • 15-Sulfonamidoprostaglandin derivatives
    Patent number: 4232173
    Abstract: Synthetic prostaglandin E compounds having carboxylic acid, ester, tetrazol, sulfonamide or imide substitutions at C-1, a methanesulfonamido group replacing the C-15 hydroxy and an aryloxy group at C-16 are disclosed. They exhibit antisecretory biological activity.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: November 4, 1980
    Assignee: Pfizer Inc.
    Inventors: Thomas K. Schaaf, James F. Eggler