Patents by Inventor Clifford R. Hughes

Clifford R. Hughes 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).

  • .alpha.-Amino ketone derivatives
    Patent number: 4105790
    Abstract: The invention concerns .alpha.-aminoacyl derivatives of phenyl-, phenoxy-, thiophenoxy- and phenylsulphinylalkanoic acids together with their amides, esters and pharmaceutically acceptable salts; processes for their preparation; and pharmaceutical compositions for therapeutic use in inhibiting the formation of thrombi and also in reducing the persistence of thrombi formed in the blood of warm blooded animals. Representative compounds of the invention are methyl 4-(aminoacetyl)phenoxyacetate, 4-(aminoacetyl)phenoxyacetic acid and methyl 4-(aminoacetyl)-thiophenoxyacetate, preferably as their hydrochlorides.
    Type: Grant
    Filed: November 9, 1976
    Date of Patent: August 8, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Clifford R. Hughes, Stephen J. Jackson, John Preston, Peter L. Walton