Patents by Inventor William T. Brannen

William T. Brannen 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).

  • Phosphite amine lubricant additives
    Patent number: 4965002
    Abstract: Lubricant additives are produced by reacting an alkoxylated amine, preferably a dialkoxy long chain alkyl amine, such as a propoxylated amine, with a disubstituted organic phosphite, preferably a dialkyl (C.sub.8 -C.sub.30) phosphite. The additives preferably also contain a boron moiety which is reacted with the phosphite and amine, preferably simultaneously in a one step reaction. The additives are particularly useful in metalworking oils and particularly as extreme pressure additives to replace the currently used chlorinated paraffin additives.
    Type: Grant
    Filed: January 27, 1988
    Date of Patent: October 23, 1990
    Assignee: Elco Corporation
    Inventors: William T. Brannen, Gerald D. Burt, Randolph A. McDonald