Patents by Inventor Doyle W. Hopkins

Doyle W. Hopkins 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).

  • Microwave-based process for dental casting
    Patent number: 6330904
    Abstract: A microwave-based process for dental casting includes the use of microwave radiation to obtain burnout of a wax pattern from an investment mold. Phosphate-based, thermal investment materials have been found suitable for use in the process.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: December 18, 2001
    Assignee: Micro Electronics Group Inc.
    Inventors: Billy Wayne Drake, Doyle W. Hopkins
  • MICROWAVE-BASED PROCESS FOR DENTAL CASTING
    Publication number: 20010001980
    Abstract: A microwave-based process for dental casting includes the use of microwave radiation to obtain burnout of a wax pattern from an investment mold. Phosphate-based, thermal investment materials have been found suitable for use in the process.
    Type: Application
    Filed: February 17, 1999
    Publication date: May 31, 2001
    Inventors: BILLY WAYNE DRAKE, DOYLE W. HOPKINS