Patents by Inventor Tsvi Spitzer

Tsvi Spitzer 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).

  • Gemstone
    Patent number: D379776
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: June 10, 1997
    Assignee: Tsvi Spitzer Diamonds Ltd.
    Inventor: Tsvi Spitzer
  • Gemstone
    Patent number: D383411
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: September 9, 1997
    Assignee: Tsvi Spitzer Diamonds Ltd.
    Inventor: Tsvi Spitzer