Patents Assigned to Advanced Ceramic Research, Inc.
  • Ceramic feedstock composition for the manufacture of prototype elements
    Patent number: 5942566
    Abstract: A ceramic or metal feedstock composition useful for manufacture of prototype elements using a filament or ribbon deposition apparatus, includes a ceramic or metal powder, a binder of ethylene/acrylate copolymer or homopolymer, a wax and liquid plasticizer mixed together in the form of a ribbon or rod which may then be used in a prototyping device.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: August 24, 1999
    Assignee: Advanced Ceramics Research, Inc.
    Inventors: John L. Lombardi, Gregory E. Hilmas, Dragan Popovich
  • Polymer carrier gears for polishing of flat objects
    Patent number: 5882245
    Abstract: A carrier is comprised of a thermoplastic polymer such as polyetheretherketone which is formed or fabricated as a uniform thickness, double sided flat sheet of material with wafer passages therethrough and gear teeth formed or fabricated around the peripheral edge thereof so as to be cooperative with a wafer polishing machine. An extrusion or rolling or calendering process provides a flat carrier which is, optionally, coated with thermoset polymer or thermoplastic film.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: March 16, 1999
    Assignee: Advanced Ceramics Research, Inc.
    Inventors: Dragan Popovich, John Lang Lombardi, Edward Daniel Albrecht, Anthony Christopher Mulligan, Gregory John Artz