Patents by Inventor Mathew David Campbell

Mathew David Campbell 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).

  • Pressure Casting of Submicron Ceramic Particles and Methods of Ejection
    Publication number: 20220234246
    Abstract: Methods and apparatus are provided for pressure casting ceramic bodies. Methods and apparatus are provided for rapid ejection of cast ceramic bodies from a mold. A mold is described that has an impermeable cavity surface to provide dry release of the cast body.
    Type: Application
    Filed: April 18, 2022
    Publication date: July 28, 2022
    Applicant: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Hugo Gonzalez, Sreeram Balasubramanian, Mathew David Campbell
  • Pressure casting of submicron ceramic particles and methods of ejection
    Patent number: 11305457
    Abstract: Methods and apparatus are provided for pressure casting ceramic bodies. Methods and apparatus are provided for rapid ejection of cast ceramic bodies from a mold. A mold is described that has an impermeable cavity surface to provide dry release of the cast body. Ceramic bodies produced by the methods and apparatus have smooth, non-tacky surfaces after ejection from the mold.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: April 19, 2022
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Hugo Gonzalez, Sreeram Balasubramanian, Mathew David Campbell
  • Pressure Casting of Submicron Ceramic Particles and Methods of Ejection
    Publication number: 20200346366
    Abstract: Methods and apparatus are provided for pressure casting ceramic bodies. Methods and apparatus are provided for rapid ejection of cast ceramic bodies from a mold. A mold is described that has an impermeable cavity surface to provide dry release of the cast body.
    Type: Application
    Filed: April 30, 2020
    Publication date: November 5, 2020
    Inventors: Hugo Gonzalez, Sreeram Balasubramanian, Mathew David Campbell