Patents by Inventor Seymour Pluchenik

Seymour Pluchenik 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).

  • Hexagonal brilliant cut diamond
    Patent number: 6578380
    Abstract: A gemstone having a crown and a pavilion, spaced by a girdle, has an overall hexagon configuration, the signature of the stone. Facets are cut in the crown of the stone defining an hexagon table and an hexagram in the crown. Six (6) trapezoids frame the hexagram and high light the signature of the stone. Facets are cut in the pavilion of the stone so that the hexagonal signature of the stone is maintained. A sharp, six (6) pointed geometric figure is formed by six (6) trapezoid facets cut in the pavilion of the stone, each trapezoid extends from the apex of the stone, toward the girdle. Pairs of triangle facets cut in conjunction with the trapezoids soften the sharp, six (6) pointed geometric figure. The hexagonal figure on the pavilion which is symmetrical with the hexagram in the crown and with the signature of the stone.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: June 17, 2003
    Assignee: Diaco
    Inventor: Seymour Pluchenik
  • Finger ring
    Patent number: D490740
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: June 1, 2004
    Assignee: Diaco International
    Inventors: Seymour Pluchenik, Avrom Ostreicher