Patents by Inventor Stanley Sikorski

Stanley Sikorski 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).

  • Jewelry gemstone
    Patent number: D363253
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: October 17, 1995
    Assignee: Sandberg & Sikorski Diamond Corp.
    Inventors: Stanley Sikorski, Robert Hurwitz
  • Jewelry stone
    Patent number: D363684
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: October 31, 1995
    Assignee: Sandberg & Sikorski Diamond Corp.
    Inventors: Stanley Sikorski, Robert Hurwitz
  • Jewelry stone assembly
    Patent number: D396823
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: August 11, 1998
    Assignee: Sandberg & Sikorski Diamond Corp.
    Inventors: Stanley Sikorski, Robert Hurwitz