Patents by Inventor Mark Joseph Struglinski

Mark Joseph Struglinski 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).

  • Viscosity modifier polybutadiene polymers
    Patent number: 5945485
    Abstract: The present invention relates to hydrogenated polybutadiene comprising monomeric units of 1,4-butadiene and 1,2-butadiene addition products. The copolymer is hydrogenated and comprises at least 10% by weight of at least one crystallizable segment and at least one low crystallinity segment.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: August 31, 1999
    Assignee: Exxon Chemical Patents Inc
    Inventors: Mark Joseph Struglinski, Gary William VerStrate, Lewis J. Fetters
  • Mixed ethylene alpha olefin copolymer multifunctional viscosity modifiers useful in lube oil compositions
    Patent number: 5744429
    Abstract: The present invention relates to novel multifunctional viscosity modifiers comprising a mixture of derivatized ethylene-alpha olefin copolymers, A and B. Said A copolymer comprising from about 30 to about 60 weight percent monomer units derived from ethylene and said B copolymer comprising from about 60 to about 80 weight percent units derived from ethylene.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: April 28, 1998
    Assignee: Exxon Chemical Patents Inc
    Inventors: David Yen-Lung Chung, Paul Brice, Steven James Searis, Mark Joseph Struglinski, John Brooke Gardiner
  • Viscosity modifier polybutadiene polymers
    Patent number: 5703171
    Abstract: The present invention relates to hydrogenated polybutadiene comprising monomeric units of 1,4-butadiene and 1,2-butadiene addition products. The copolymer is hydrogenated and comprises at least 10% by weight of at least one crystallizable segment and at least one low crystallinity segment.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 30, 1997
    Assignee: Exxon Chemical Patents Inc
    Inventors: Mark Joseph Struglinski, Gary William VerStrate, Lewis J. Fetters