Patents by Inventor Israel Itzkowitz

Israel Itzkowitz 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).

  • Invisible setting for precious stones for jewelry
    Patent number: 5713219
    Abstract: A diamond having a girdle with oppositely located flattened portions is disclosed. Each of the flattened portions has a cut-out with sloped walls. The girdle preferably has facets at its circumference, except at its flattened portion. The diamond is set into a barrel having a ridge member comprising a prong dimension to fit into the respective cut-out and to frictionally engage one of the sloped walls of the cut-out, thereby, rigidly securing the diamond to the barrel.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: February 3, 1998
    Assignee: Ambar Diamonds, Inc.
    Inventor: Israel Itzkowitz
  • Invisible setting for round diamonds
    Patent number: 5649434
    Abstract: A round diamond having a girdle with oppositely located flattened portions is disclosed. Each of the flattened portions has a cut-out with sloped walls. The girdle preferably has facets at its circumference, except at its flattened portion. The round diamond is set into a barrel having a ridge member comprising a prong dimension to fit into the respective cut-out and to frictionally engage one of the sloped walls of the cut-out, thereby, rigidly securing the diamond to the barrel.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: July 22, 1997
    Assignee: Ambar Diamonds Inc.
    Inventor: Israel Itzkowitz
  • Finger ring
    Patent number: D363252
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: October 17, 1995
    Assignee: Ambar Diamonds, Inc.
    Inventors: Bezalel Ambar, Israel Itzkowitz
  • Finger ring
    Patent number: D372204
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: July 30, 1996
    Assignee: Ambar Diamonds, Inc.
    Inventor: Israel Itzkowitz
  • Ring
    Patent number: D373550
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: September 10, 1996
    Assignee: Ambar Diamonds Inc.
    Inventor: Israel Itzkowitz
  • Jeweled earring
    Patent number: D379601
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: June 3, 1997
    Assignee: Ambar Diamonds Inc.
    Inventor: Israel Itzkowitz
  • Finger ring
    Patent number: D386438
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: November 18, 1997
    Assignee: Ambar Diamonds Inc.
    Inventor: Israel Itzkowitz
  • Earring
    Patent number: D386439
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: November 18, 1997
    Assignee: Ambar Diamonds Inc.
    Inventor: Israel Itzkowitz
  • Jewelry setting
    Patent number: D386443
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: November 18, 1997
    Assignee: Ambar Diamonds, Inc.
    Inventor: Israel Itzkowitz
  • Combined gemstone and setting
    Patent number: D387302
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: December 9, 1997
    Assignee: Ambar Diamonds Inc.
    Inventor: Israel Itzkowitz
  • Combined gemstone and setting
    Patent number: D388015
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: December 23, 1997
    Assignee: Ambar Diamonds Inc.
    Inventor: Israel Itzkowitz
  • Combined gemstone and setting
    Patent number: D392591
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: March 24, 1998
    Assignee: Ambar Diamonds Inc.
    Inventor: Israel Itzkowitz
  • Pendant
    Patent number: D394824
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: June 2, 1998
    Assignee: Ambar Diamonds Inc.
    Inventor: Israel Itzkowitz
  • Bracelet
    Patent number: D400118
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: October 27, 1998
    Assignee: Ambar Diamonds Inc.
    Inventor: Israel Itzkowitz