Patents by Inventor George Oswald Chase

George Oswald Chase 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).

  • Process for preparing benzodiazepines
    Patent number: 3996209
    Abstract: 1,4-Benzodiazepin-2-ones are prepared via the reaction of a haloacetamidophenyl ketone with hexamethylenetetramine in the presence of ammonia. The 1,4-benzodiazepin-2-ones so prepared are known compounds useful as muscle relaxant and anti-convulsant agents.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: December 7, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventor: George Oswald Chase