Patents by Inventor Henri Hoffmann

Henri Hoffmann 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).

  • 1-Polyhydroxy alkyl-1,4-benzodiazepin-2-ones
    Patent number: 3963777
    Abstract: Novel 1,4-benzodiazepin-2-ones bearing a polyhydroxyalkyl group in the 1-position are disclosed. These 1-substituted benzodiazepins are useful as muscle relaxant, anti-convulsant and sedative agents.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: June 15, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Joseph Hellerbach, Henri Hoffmann, Guido Zanetti