Patents by Inventor Michael D. Helderman

Michael D. Helderman 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).

  • Golf ball and indentification system
    Patent number: 5743815
    Abstract: An electronically identifiable golf ball having a passive transponder implanted therein. The transponder is surrounded by a layer of elastic material which is then surrounded by a rigid housing to protect the passive transponder from the external forces applied to the golf ball.
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: April 28, 1998
    Inventor: Michael D. Helderman