Patents Assigned to Douglas Sills
  • Patent number: 5099660
    Abstract: A jewelry article basically comprises a plurality of large round diamonds and small round diamonds with the pavilion portion of the large round diamonds bearing directly upon and overlying, at least a portion, of the crown of the smaller round diamonds such that individually metallic prongs for the diamonds are eliminated. In this manner, the overall brilliance of the structure is increased, greater continuous diamond surface is exposed, less total carat weight is required to provide the same size ring as would be required with individual prong settings and, correspondingly, the cost of the ring structure is decreased.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: March 31, 1992
    Assignee: Douglas Sills
    Inventor: Jack Dostourian
  • Patent number: D329992
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: October 6, 1992
    Assignees: Douglas Sills, Jeffrey Link, Kenneth Rosenzweig
    Inventor: Jack Dostourian
  • Patent number: D374193
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: October 1, 1996
    Assignees: Jeffrey Link, Douglas Sills
    Inventor: Jack Doustorian
  • Patent number: D382505
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: August 19, 1997
    Assignees: Douglas Sills, Jeffrey Link
    Inventor: Jack Doustorian