Patents by Inventor Jean-Paul Berthelot

Jean-Paul Berthelot 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).

  • Electrical insulating oils containing trialkyl benzenes
    Patent number: 4081393
    Abstract: Electrical oils which are blends of specified trialkyl benzenes and mineral oils have improved gas absorption and oxidation stability.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: March 28, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventors: Jean-Paul Berthelot, Pierre Dominique Marin