Patents by Inventor Peter Carress

Peter Carress 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).

  • DETERGENT AND DISPERSANT SYSTEMS FOR IMPROVED STEEL PISTON CLEANLINESS IN HEAVY DUTY LUBRICANTS
    Publication number: 20250075144
    Abstract: The present disclosure relates to heavy duty crankcase lubricating oil compositions achieving high piston cleanliness of steel piston pursuant to the OM471 piston cleanliness test using a detergent system of sulfonate soap and dispersant system of one or more polyisobutylene succinimide dispersants to the lubricating oil composition.
    Type: Application
    Filed: August 30, 2023
    Publication date: March 6, 2025
    Applicant: Afton Chemical Corporation
    Inventors: Dominic Myers, Nicholas Giles, Peter Carress, Guillaume Carpentier, Paul Ransom, Leah Donham
  • LUBRICANT COMPOSITIONS HAVING IMPROVED DISPERSANCY PROPERTIES AND WEAR PERFORMANCE
    Publication number: 20090082234
    Abstract: There is disclosed an additive composition comprising (a) a highly reactive polyisobutenyl succinimide dispersant, (b) a polyisobutenyl succinimide dispersant, and (c) a grafted olefin copolymer viscosity index improver.
    Type: Application
    Filed: September 21, 2007
    Publication date: March 26, 2009
    Inventors: Cathy C. DEVLIN, Charles A. Passut, Peter Carress