Patents by Inventor Howard E. Hoffman

Howard E. Hoffman 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).

  • N-(benzothienopyrazol)amide antirhinoviral agents
    Patent number: 4140785
    Abstract: Certain N-(benzothienopyrazol)amides such as 2,2-diethyl-N-(1-methyl-1-H-(1)benzothieno[3,2-c]-pyrazol-3-yl)butanamide are useful for the prophylaxis and therapy of diseases caused by rhinoviruses.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: February 20, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Howard E. Hoffman, Dennis R. Rayner