Patents by Inventor Andy M. Arismendi, Jr.

Andy M. Arismendi, Jr. 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).

  • Lubricant composition containing a viscosity index improver having dispersant properties
    Patent number: H815
    Abstract: The present invention relates to a lubricant composition containing a minor amount of a thermally stable modified selectively hydrogenated alkenyl arene/conjugated diene copolymer wherein a primary or secondary amine functional group is grafted to the block copolymer primarily in the alkenyl arene blocks thereof.
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: September 4, 1990
    Inventors: Carl L. Willis, Andy M. Arismendi, Jr.
  • Lubricant compositions containing a viscosity index improver having dispersant properties
    Patent number: H826
    Abstract: The present invention relates to a lubricant composition containing a minor amount of a thermally stable moldified selectively hydrogenated alkenyl arene/conjugated diene copolymer wherein an amide functional group is grafted to the block copolymer primarily in the alkenyl arene blocks thereof.
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: October 2, 1990
    Inventors: Carl L. Willis, Andy M. Arismendi, Jr.