Patents by Inventor Robert L. Koehler

Robert L. Koehler 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).

  • Solar power generating and advertising income system
    Patent number: 9121391
    Abstract: A solar power generating and advertising income system including a solar power array assembly having a support framework, a plurality of solar power panels each having a photovoltaic surface, lighted display panels having a media viewable surface, power storage batteries, a power inverter, and a programmable processor unit.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: September 1, 2015
    Inventor: Robert L Koehler, III
  • Adjustable wrench
    Patent number: 4350063
    Abstract: A narrow band of a flexible, spring material is formed into a loop and has equally spaced, laterally extending slots threadedly engaged by a worm on a handle extending tangentially of the loop so that rotation of the handle adjusts the size of the loop.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: September 21, 1982
    Inventor: Robert L. Koehler