Patents by Inventor Robert H. Krug

Robert H. Krug 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).

  • Corrosion inhibited lube oil compositions
    Patent number: 3966623
    Abstract: A lubricating oil composition containing a synergistic corrosion inhibiting combination of 2,5-bis-hydrocarbyldithio-1,3,4-thiadiazole and a primary alkyl or alkenyl amine salt of 2-mercaptobenzothiazole.
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: June 29, 1976
    Assignee: Texaco Inc.
    Inventors: Robert H. Krug, Clemence J. Henry