Patents by Inventor Jean-Louis Perreau

Jean-Louis Perreau 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).

  • Device for training to play golf
    Patent number: 4560167
    Abstract: The present invention relates to a device for training to play golf. Above a black disc is coaxially held a detector comprising a phototransistor which monitors a surface of diameter equal to that of a golf hole less the diameter of a golf ball and which sends to an electronic circuit any variation of light due to the passage of a golf ball, this electronic circuit measures the duration of this variation, comparing it with a predetermined duration and signalling the probability of this ball dropping into a golf hole or passing above it or to the side.
    Type: Grant
    Filed: February 10, 1984
    Date of Patent: December 24, 1985
    Assignee: Sidinter S.A.
    Inventors: Alain P. Perreau, Jean-Louis Perreau