Patents by Inventor Paul Simon O'Hora

Paul Simon O'Hora 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).

  • Nitrogen-functionalized olefin polymers for driveline lubricants
    Patent number: 11180711
    Abstract: A lubricant composition of an oil of lubricating viscosity, a grafted copolymer viscosity modifier that is an ashless condensation reaction product of an olefin polymer, having a number average molecular weight of about 1000 to about 10,000, comprising carboxylic acid or equivalent functionality grafted onto the polymer backbone, with a monoamine or a polyamine often having a single primary amino group, which exhibits good dispersancy and viscometric performance in a driveline device.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: November 23, 2021
    Assignee: The Lubrizol Corporation
    Inventors: Sona Sivakova, David M. Nickerson, Paul Simon O'Hora, William R. S. Barton
  • Nitrogen-Functionalized Olefin Polymers for Driveline Lubricants
    Publication number: 20210130732
    Abstract: A lubricant composition of an oil of lubricating viscosity, a grafted copolymer viscosity modifier that is an ashless condensation reaction product of an olefm polymer, having a number average molecular weight of about 1000 to about 10,000, comprising carboxylic acid or equivalent functionality grafted onto the polymer backbone, with a monoamine or a polyamine often having a single primary amino group, which exhibits good dispersancy and viscometric performance in a driveline device.
    Type: Application
    Filed: August 16, 2018
    Publication date: May 6, 2021
    Inventors: Sona Sivakova, David M. Nickerson, Paul Simon O'Hora, William R.S. Barton