Patents by Inventor Edward A. Fliss

Edward A. Fliss 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).

  • Polyurea grease composition
    Patent number: 5238589
    Abstract: A polyurea grease composition is prepared by reacting a diisocyanate with a monoamine and a diamine in the presence of a polyoxyethylene/polypropylene glycol copolymer having a molecular weight of 300 to 15,000 or an alkoxylated alkylene diamine having a molecular weight of 500 to 18,000. The resulting grease composition demonstrates resistance to water absorption and improved yield (low penetration number vs. high).
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: August 24, 1993
    Assignee: Texaco Inc.
    Inventors: Samuel Pratt, Edward A. Fliss