Patents Assigned to GIA GEM Instruments Corporation
  • Wire jaw stoneholder
    Patent number: 5378032
    Abstract: An improved stoneholder for supporting diamonds and other gemstones comprising a pair of clasping members and a pair of respective clasp mounts. Each clasping member comprises a pair of stone support members which are joined at a distal end, separated by an aperture, and mounted to one of the respective clasp mounts at a proximal end.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: January 3, 1995
    Assignee: GIA Gem Instruments Corporation
    Inventors: Richard C. Agnew, Robert Van Den Heuvel
  • Wire jaw stoneholder
    Patent number: 5242203
    Abstract: An improved stoneholder for supporting diamonds and other gemstones comprising a pair of clasping members and a pair of respective clasp mounts. Each clasping member comprises a pair of stone support members which are joined at a distal end, separated by an aperture, and mounted to one of the respective clasp mounts at a proximal end.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: September 7, 1993
    Assignee: GIA GEM Instruments Corporation
    Inventors: Richard Agnew, Robert Van Den Heuvel