Patents by Inventor Peter M. Dorrell

Peter M. Dorrell 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).

  • Lubricant
    Patent number: 4336150
    Abstract: A lubricant suitable for use in metal forming comprising a copolymer of an unsaturated carboxylic acid and an unsaturated carboxylic acid ester, said copolymer having an acid value of at least 40, polytetrafluoroethylene and a liquid vehicle for the mixture.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: June 22, 1982
    Assignee: Steetley Minerals Limited
    Inventor: Peter M. Dorrell