Patents by Inventor Gregory W. Hoffmann

Gregory W. 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).

  • Processes for producing very low IV polyester resin
    Patent number: 6706396
    Abstract: The present invention provides processes for producing certain very low inherent viscosity polyesters. Also provided are the low inherent viscosity polyesters in discrete particulate form, and processes for producing the particulate polyesters. The discrete particulate materials are desirable for use in further processes.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: March 16, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Richard Allen Hayes, Gregory W. Hoffmann