Patents by Inventor Herbert Maak

Herbert Maak 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).

  • Lubricating greases for high operating temperatures
    Patent number: 4737299
    Abstract: Lubricating greases suitable for use at high operating temperatures which contain a complex thickening system consisting of a lithium soap of a hydroxy fatty acid, an alkali salt of boric acid and a dilithium salt of a branched alkyl chain dicarboxylic acid.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: April 12, 1988
    Assignee: Texaco Technologie Europa GmbH
    Inventors: Hans D. Grasshoff, Herbert Maak