Patents by Inventor Richard W. Renken

Richard W. Renken 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).

  • Microphone/encoder module
    Patent number: D246780
    Type: Grant
    Filed: April 30, 1976
    Date of Patent: December 27, 1977
    Assignee: Heath Company
    Inventor: Richard W. Renken