Patents by Inventor Richard R. Keller

Richard R. Keller 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).

  • Joining clamp assembly with overlapping seals for translucent wall panels and the like
    Patent number: 4129973
    Abstract: This disclosure deals with novel clamping structures for stagger-joining wall panels as of the translucent sandwich type and the like, provided with panel overlapping clamping elements having weather sealants and adapted to be threadedly locked in offset position.
    Type: Grant
    Filed: May 4, 1977
    Date of Patent: December 19, 1978
    Assignee: Kalwall Corporation
    Inventor: Richard R. Keller