Patents by Inventor Roy Vivian Foster

Roy Vivian Foster 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).

  • Acetic acid derivatives
    Patent number: 4028404
    Abstract: Novel phenylacetic derivatives are provided of the general formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are as defined herein, and pharmaceutically acceptable salts thereof. These have anti-inflammatory or analgetic activity. The invention also provides a process for the production of these compounds from a ketone of the structure: ##STR2## It also provides pharmaceutical compositions including phenylacetic derivatives.
    Type: Grant
    Filed: April 26, 1974
    Date of Patent: June 7, 1977
    Assignee: Allen & Hanburys Limited
    Inventors: David Edmund Bays, Roy Vivian Foster