Patents by Inventor Frank B. Colton

Frank B. Colton 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).

  • 3.beta.,17-Dihydroxy-5.alpha.,17.alpha.-pregn-20-ene-21-carboxylic acid .gamma.-lactone and esters thereof
    Patent number: 4108851
    Abstract: Preparation of 3.beta.,17-dihydroxy-5.alpha.,17.alpha.-pregn-20-ene-21-carboxylic acid .gamma.-lactone and esters thereof, the analgesic utility of the esters, and the utility of the diol both as an intermediate and by reason of its antiviral activity are disclosed.
    Type: Grant
    Filed: July 20, 1977
    Date of Patent: August 22, 1978
    Assignee: G. D. Searle & Co.
    Inventors: Edward A. Brown, Frank B. Colton
  • (5Z,13E,15S)-15-Hydroxy-11-oxoprosta-5,9.13-trien-1-oic acid and esters
    Patent number: 3954844
    Abstract: Preparation and the antispasmodic utility of (5Z,13E,15S)-15-hydroxy-11-oxoprosta-5,9,13-trien-1-oic acid and esters are disclosed.
    Type: Grant
    Filed: January 3, 1975
    Date of Patent: May 4, 1976
    Assignee: G. D. Searle & Co.
    Inventors: Frank B. Colton, Leland J. Chinn