Patents by Inventor Alexander Williamson

Alexander Williamson 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).

  • 2-cyano-3-hydroxy-propenamides
    Patent number: 5693844
    Abstract: A compound selected from the group consisting of a compound of the formula ##STR1## wherein R.sub.1 is cyclopropyl or --CH.sub.2 --CH.dbd.CH.sub.2, R.sub.2 is --S(O).sub.n --(CF.sub.2).sub.x --CF.sub.3, n is 1 or 2, x is 0 or 1, R.sub.3 is hydrogen or alkyl of 1 to 3 carbon atoms, m is 0 or 1 and its non-toxic, pharmaceutically acceptable addition salts with a base having anti-inflammatory activity.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: December 2, 1997
    Assignee: Roussel UCLAF
    Inventors: David Paul Kay, Elizabeth Anne Kuo, Richard Alexander Williamson