Patents by Inventor Robert Louis Hammond

Robert Louis Hammond 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).

  • Anchored golf tee
    Patent number: 4114878
    Abstract: A golf tee is provided with an anchor in the form of a green groomer secured to the golf tee by means of a high tensile strength flexible line. The groomer also carries a ball marker disc detachably secured thereto by detent type pin and hole attaching device.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: September 19, 1978
    Inventor: Robert Louis Hammond