Patents by Inventor Denis John Kertesz

Denis John Kertesz 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).

  • 21-Cyclic acetals of steroidal 21-aldehydes and methods of preparation
    Patent number: 4064240
    Abstract: 21-Cyclic acetals of steroids of the corticoid series are prepared from the corresponding 21-hydroxy steroids. The products have utility as anti-inflammatory agents.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: December 20, 1977
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Michael Marx, Denis John Kertesz
  • 21-Acetals and mixed acetals of steroidal 21-aldehydes, intermediates and methods of preparation
    Patent number: 4011315
    Abstract: 21-ACETALS AND MIXED ACETALS OF STEROIDS OF THE CORTICOID SERIES ARE PREPARED FROM THE CORRESPONDING 21-HYDROXY STEROIDS AND HAVE UTILITY AS ANTI-INFLAMMATORY AGENTS.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: March 8, 1977
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Michael Marx, Denis John Kertesz
  • 21-Esters of steroidal-21-aldehyde hydrates and 21-aldehyde hemiacetals and methods of preparation
    Patent number: 3996358
    Abstract: 21-Esters of 21-aldehyde hydrates and 21-aldehyde hemiacetals of steroids of the corticoid series are prepared from the corresponding 21-hydroxy steroids and have utility as antiinflammatory agents.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: December 7, 1976
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Michael Marx, Denis John Kertesz