Patents by Inventor Alan H. Simpson

Alan H. Simpson 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).

  • Spinning baseball device
    Patent number: 6093118
    Abstract: When spun by an electric drill, this device allows a batter to practice reading the spin on a pitched baseball. The device creates this spin, without a baseball being pitched. The device is inexpensive, single person operated, small area safe, and serves more than one batter at the same time.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: July 25, 2000
    Inventor: Alan H. Simpson
  • Beverage tumbler
    Patent number: D248004
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: May 30, 1978
    Inventor: Alan H. Simpson