Patents by Inventor Dov Shazeer

Dov Shazeer 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).

  • Whirley balls amusement device
    Patent number: 4496154
    Abstract: A hand held housing can be manipulated to cause a pair of balls to move in opposite directions along a groove in the housing. The groove has upstanding inner and outer walls. These walls have a rough surface and the balls have a snug fit in the groove.
    Type: Grant
    Filed: August 10, 1982
    Date of Patent: January 29, 1985
    Inventor: Dov Shazeer