Patents by Inventor Eugene Dennis Wilhoit

Eugene Dennis Wilhoit 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).

  • Nitric acid hydrolysis of polyamides
    Patent number: 5750791
    Abstract: Dicarboxylic acid and diamine are recovered from polyamides by hydrolysis with nitric acid, followed by separation of the dicarboxylic acid, and hydrogenation of the nitric acid, and then recovery of the diamine.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: May 12, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Darwin Darrell Davis, Eugene Dennis Wilhoit