Patents by Inventor Allison M. Williamson

Allison M. Williamson 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).

  • PROCESSES FOR PRODUCING REACTION PRODUCTS
    Publication number: 20240336710
    Abstract: Provided is a process for producing a reaction product, the process comprising reacting polyisobutylene with a radical initiator and an ethylenically unsaturated acylating agent at a reaction temperature of from 150° C. to 225° C. to produce the reaction product, wherein the polyisobutylene is brought to the reaction temperature prior to addition of the radical initiator; and wherein the ethylenically unsaturated acylating agent is added at any time prior to or during addition of the radical initiator.
    Type: Application
    Filed: August 5, 2022
    Publication date: October 10, 2024
    Inventors: Philip W. Pike, Dixit Parmar, Nicolas Proust, Binbin Guo, John R. Johnson, Amy L. Short, Allison M. Williamson, Joshua Armbrecht, Patrick Newby, Kurt F. Wollenberg
  • Lubricating compositions
    Patent number: 11702610
    Abstract: Lubricating compositions containing a phosphorus-containing salt of an acylated ethylene-?-olefin polymer substituted with an aliphatic polyamine having at least one primary or secondary amine, the lubricating composition having a total phosphorus content in an amount of 200 ppm to 600 ppm by weight of the lubricating composition. The phosphorus-containing salt additive described herein can be used as an anti-wear agent in lubricating composition for diesel engines.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: July 18, 2023
    Assignee: The Lubrizol Corporation
    Inventors: Daniel J. Knapton, Allison M. Williamson, Thomas Derevjanik
  • LUBRICATING COMPOSITIONS
    Publication number: 20210269735
    Abstract: Lubricating compositions containing a phosphorus-containing salt of an acylated ethylene-?-olefin polymer substituted with an aliphatic polyamine having at least one primary or secondary amine, the lubricating composition having a total phosphorus content in an amount of 200 ppm to 600 ppm by weight of the lubricating composition. The phosphorus-containing salt additive described herein can be used as an anti-wear agent in lubricating composition for diesel engines.
    Type: Application
    Filed: June 19, 2019
    Publication date: September 2, 2021
    Applicant: The Lubrizol Corporation
    Inventors: Daniel J. Knapton, Allison M. Williamson, Thomas Derevjanik