Patents by Inventor William B. Ashton

William B. Ashton 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).

  • Transformer oils
    Patent number: 4018693
    Abstract: The transformer oils of improved resistivity are prepared by adding an effective quantity of a carbonyl containing compound particularly an aldehyde or ketone to a conventional transformer oil.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: April 19, 1977
    Assignee: Texaco Inc.
    Inventors: Theodore C. Mead, William B. Ashton