Patents by Inventor Herbert A. McIntosh

Herbert A. McIntosh 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).

  • Production of lubricating oils
    Patent number: 3970543
    Abstract: Lubricating oils are prepared by a sequence of steps comprising hydrorefining, fractionation and blending.
    Type: Grant
    Filed: October 2, 1974
    Date of Patent: July 20, 1976
    Assignee: Texaco Inc.
    Inventor: Herbert A. McIntosh