Patents by Inventor Frank Hess

Frank Hess 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).

  • Quaternary fatty diesters of hydroxypropyl diethanol amine
    Patent number: 5961966
    Abstract: A quaternary fatty diester of 2-hydroxypropyl diethanol amine and aqueous dispersions thereof useful as fabric softening products, laundering products, household cleaning products and personal hair and skin care products. Methods for softening textiles, fabrics or laundry articles with the quaternary fatty diesters of the present invention are also disclosed.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: October 5, 1999
    Assignee: Croda, Inc.
    Inventors: Phillip G. Abend, Abel G. Pereira, Frank Hess