Patents by Inventor James Douglas Riddell

James Douglas Riddell 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).

  • Patent number: 6461247
    Abstract: A golf putting practice apparatus for improving one's stroke and accuracy in putting a golf ball with a putter, comprising: two cord positioning and holding members, each member having an inner face portion, and adapted to hold portions of the length of cord in spaced parallel linear alignment between the members; and, a length of cord extending between the two inner face portions of the cord holding and positioning members. The golf ball may be initially positioned and subsequently putted between the parallel portions of the cord; thereby enabling one to better judge the linearity of the stroke of the putter and the accuracy of the putt by reference to the portions of the cord held in parallel and spaced alignment on each side of the ball. A method of using the above apparatus is disclosed which includes the step of applying two strips of colored tape to top portions of the putter in a position which vertically corresponds to the position of the cord therebelow.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: October 8, 2002
    Inventor: James Douglas Riddell