Patents by Inventor David M. Caplan

David M. Caplan 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).

  • Inflatable aquatic exerciser
    Patent number: 4300759
    Abstract: Multi-chambered air inflatable aquatic exercise jackets for the arms and legs constructed from plastic sheet material.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: November 17, 1981
    Assignee: AMF Incorporated
    Inventor: David M. Caplan
  • Bowling ball
    Patent number: 4099715
    Abstract: Top weight and/or total weight are adjusted by drilling a hole into the ball along a diameter passing through the center of the top weight area and the center of gravity of total ball weight. Weighted plugs are then located at the two centers by an intervening spacer, and the hole closed by a closure cap.
    Type: Grant
    Filed: April 22, 1975
    Date of Patent: July 11, 1978
    Assignee: AMF Incorporated
    Inventor: David M. Caplan