Patents by Inventor A. Fred Dohmann

A. Fred Dohmann 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).

  • Plural position jump rope apparatus
    Patent number: 5236405
    Abstract: A first and second jump rope assembly are interconnected by first and second jump rope second ends, with the first and second assemblies having first ends permitting ease of rotation of the jump rope assemblies in juxta position relative to one another for use by a plurality of individuals.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: August 17, 1993
    Inventors: K. Paige Dohmann, A. Fred Dohmann