Patents by Inventor Steve H. Pancygrau

Steve H. Pancygrau 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).

  • Impeller for refrigerant compressors
    Patent number: D355253
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: February 7, 1995
    Assignee: Northern Research & Engineering Corporation
    Inventors: Willem Jansen, Steve H. Pancygrau, Bradford R. Myrick, John M. Griffith