Patents by Inventor Richard R. Koehl

Richard R. Koehl 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).

  • Engine
    Patent number: D605661
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: December 8, 2009
    Assignee: Kohler Co.
    Inventor: Richard R. Koehl
  • Cyclonic air cleaner housing
    Patent number: D632770
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: February 15, 2011
    Assignee: Kohler Co.
    Inventors: Terrence M. Rotter, Jeffrey S. Sayler, Richard R. Koehl, Robert J. Hensel, Herbert V. Kohler, Jr.