Patents by Inventor Patrick F. Ginnelly

Patrick F. Ginnelly 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).

  • Manufacture of dihydrocarbyl dithiophosphates
    Patent number: 5627294
    Abstract: An alcohol and/or a carboxylic acid or carboxylate is used to reduce the proportion of sediment obtained in the manufacture of a metal or ammonium dihydrocarbyl dithiophosphate, for example, a zinc dihydrocarbyl dithiophosphate (ZDDP) for use as an antiwear agent/antioxidant in crankcase lubricating oils.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: May 6, 1997
    Assignee: Exxon Chemical Patents Inc.
    Inventors: David R. Adams, Patrick F. Ginnelly