Patents by Inventor Dalph D. Ray

Dalph D. Ray 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).

  • Training device for bicyclists
    Patent number: 4466797
    Abstract: A device for use with conventional bike simulators to facilitate improvement in pedaling skills.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: August 21, 1984
    Inventor: Dalph D. Ray