Patents by Inventor Martin O. Smith

Martin O. Smith 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).

  • Electronic golf practice device
    Patent number: 5624327
    Abstract: A golf putting practice device which provides visual feedback to the user, comprising a head position indicator, visible only when the user's head is in the correct position while striking a golf ball, and which changes color to indicate when the user may move his or her head, and a device for determining that the putter has been maintained in the proper position relative to the ground surface.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: April 29, 1997
    Inventor: Martin O. Smith