Patents by Inventor Jeffrey R. Holtz

Jeffrey R. Holtz 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).

  • Engine cleaning processes
    Patent number: 5232513
    Abstract: An engine cleaning apparatus and process for removing contamination from internal oil passages, internal water passages, internal air/fuel passages, and internal exhaust system passages of an internal combustion engine comprising a pump working in communication with a fluid supply line and a fluid return line to pump and vacuum a solvent fluid through the passages of the engine.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: August 3, 1993
    Inventors: Ted L. Suratt, Jeffrey R. Holtz