Patents by Inventor Bernard Matra

Bernard Matra 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).

  • 4,5-Seco-estrane-3,5,17-trione derivatives
    Patent number: 4207240
    Abstract: Novel 4,5-seco-estrane-3,5,17-trione derivatives of the formula ##STR1## wherein R.sub.1 is alkyl of 1 to 3 carbon atoms, R.sub.2 is selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms and K and K' are individually blocked ketones in the form of ketals which are intermediates for the preparation of therapeutically active steroids and their preparation and novel intermediates.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: June 10, 1980
    Assignee: Roussel Uclaf
    Inventors: Jean Jolly, Bernard Matra, Primo Rizzi