Patents by Inventor David Sterett Moorman

David Sterett Moorman 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).

  • Polymeric (meth)acrylate plasticizers and processing aids for elastomers
    Patent number: 6300407
    Abstract: An elastomer composition, including: at least one elastomer; a plasticizer which includes at least one polymeric material having a weighted average molecular weight of (Mw) of 500 to 1,000,000, formed from at least one ethylenically unsaturated monomer, and a curing agent, wherein the at least one polymeric material is substantially permanent within the elastomer. The subject elastomer compositions have enhanced plasticity and processability without attendant migration, heat or solvent extraction and compatibility problems.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: October 9, 2001
    Assignee: Rohm and Haas Company
    Inventors: Warren Harvey Machleder, Robert Howard Gore, David Sterett Moorman, Michael Damian Bowe
  • Dispersant viscosity index improving additive for lubricating oils
    Patent number: 5851967
    Abstract: The present invention provides dispersant viscosity index improving additives for lubricating oils. The additives are copolymers comprising from 92 weight percent to 98 weight percent of a polymer backbone and from 2 weight percent to 8 weight percent branches grafted onto the polymer backbone.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: December 22, 1998
    Inventors: Claude C. Schauber, Nguyen Dinh Truong, David Sterett Moorman