Patents by Inventor Francis S. Sayles

Francis S. Sayles 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).

  • Paraffinic base greases
    Patent number: 3997455
    Abstract: Greases containing a calcium or calcium/lead complex thickener, a terpolymer improver and a paraffinic base lubricating vehicle. The greases have a thicker consistency than is normally obtained with paraffinic base stocks. They are produced by introducing the terpolymer to the charge of the lubricating vehicle and thickening agent components prior to saponification.
    Type: Grant
    Filed: June 26, 1975
    Date of Patent: December 14, 1976
    Assignee: Mobil Oil Corporation
    Inventor: Francis S. Sayles