Patents by Inventor Gregg Heyl

Gregg Heyl 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).

  • Patent number: D289235
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: April 14, 1987
    Assignee: Virco Mfg. Corporation
    Inventor: Gregg Heyl