Patents by Inventor Jack A. Bert

Jack A. Bert 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).

  • Dynamic methods and apparatus for reducing octane requirement increase
    Patent number: 4517943
    Abstract: Methods and apparatus for removing combustion chamber deposits during normal engine operation by advancing spark timing during intermittent series of compression strokes for each cylinder of a spark-ignition, internal-combustion engine in turn.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: May 21, 1985
    Assignee: Chevron Research Company
    Inventors: Jack A. Bert, R. Eric Olsen