Patents by Inventor Robert E. Muller

Robert E. Muller 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: 6832775
    Abstract: A trailer hitch cushion assembly that includes a foam cover structure having a fastener provided along a split opening section thereof and having a cavity therein of sufficient size and shape to receive the hitch shaft portion and trailer connecting ball portion of a trailer hitch; the cover being constructed from a resilient foam having a brightly colored fabric outer cover and having weather-proof fasteners such as plastic snaps and/or hook and pile fasteners and one or more safety chain securing attachments that are securable to the safety chain of the hitch to secure the safety chain in place.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: December 21, 2004
    Inventor: Robert E. Muller
  • Patent number: 5501363
    Abstract: The present invention relates to an apparatus which is easily convertible from a container such as a drinking cup, into a megaphone and thereafter back to a container. Ideally, the apparatus will include a team logo or other such representation of support thus making it especially suitable for use at sporting events and the like.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: March 26, 1996
    Inventors: Robert E. Muller, Robert Tinari, David J. Canestrale, Jr.
  • Patent number: 5037473
    Abstract: A denture liner composition is provided comprising a methacrylate polymer and/or copolymer in powder form to be wetted by a liquid composition containing dimethacrylate, butyl methacrylate, and long chain methacrylate monomers, the mixture setting upon wetting and being polymerized by visible light and chemical action. A method for using the composition in denture liner formation is also provided.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: August 6, 1991
    Inventors: Joseph M. Antonucci, Robert E. Muller