Patents by Inventor Robert A. Cupper

Robert A. Cupper 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).

  • Method of improving antiwear properties of high temperature hydrocarbon compositions
    Patent number: 4346015
    Abstract: The lubricating characteristics of high temperature fluids used in Rankine Cycle and heat pump systems has been enhanced by incorporating therein heterocyclic arenes containing 8 to about 18 ring carbon atoms and an average of 1 to 2 ring nitrogen or S atoms per arene, and optionally 1 to 2 ring O atoms with substituents such as alkyl, amino, keto oxygen or hydroxyl groups.
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: August 24, 1982
    Assignee: Union Carbide Corporation
    Inventors: George S. Somekh, Robert A. Cupper
  • Polyol ester functional fluids
    Patent number: 4313890
    Abstract: Synthetic polyol ester fluids useful as lubricants or hydraulic fluids have been prepared by the esterification of ethylene-methyl formate telomerization products with polyols containing from two to about six hydroxyl groups.
    Type: Grant
    Filed: January 29, 1980
    Date of Patent: February 2, 1982
    Assignee: Union Carbide Corporation
    Inventors: Nan S. Chu, Nye A. Clinton, Robert A. Cupper, Philip F. Wolf, Priscilla B. Stanley
  • Silicone-hydrocarbon compositions
    Patent number: 4244831
    Abstract: Silicone-hydrocarbon compositions of matter having utility as lubricants and hydraulic fluids.
    Type: Grant
    Filed: April 7, 1976
    Date of Patent: January 13, 1981
    Assignee: Union Carbide Corporation
    Inventor: Robert A. Cupper