Patents by Inventor Richard C. Kohm

Richard C. Kohm 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).

  • Sign structure
    Patent number: 4236333
    Abstract: A sign structure which may be supported from aircraft, and especially helicopters. The structure is comprised of three distinct sections which may be compactly transported and then easily assembled and connected around the landing gear on the underside of the aircraft. The structure provides an aerodynamically stable frame which may be supported in a direction transverse to the longitudinal axis of a helicopter. Novel electrically controlled light assemblies are attached in a rectangular matrix on the structure for displaying a desired illuminated message.
    Type: Grant
    Filed: December 6, 1978
    Date of Patent: December 2, 1980
    Inventors: Richard C. Kohm, C. Thomas Foster