Patents by Inventor Roy H. Zimmerman

Roy H. Zimmerman 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).

  • Control panel for an air conditioning system
    Patent number: D296776
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: July 19, 1988
    Assignee: York International Corporation
    Inventors: John C. Hansen, Roy H. Zimmerman