Patents by Inventor Greg Piefer

Greg Piefer 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).

  • SEPARATION OF RARE EARTH ELEMENTS
    Publication number: 20260176719
    Abstract: A method for purifying lutetium includes providing a solid composition comprising ytterbium and lutetium and subliming or distilling ytterbium from the solid composition at a temperature of about 1196° C. to about 3000° C. to leave a lutetium composition comprising a higher weight percentage of lutetium than was present in the solid composition.
    Type: Application
    Filed: February 13, 2026
    Publication date: June 25, 2026
    Applicant: SHINE Technologies, LLC
    Inventors: Richard Sisson, Eric Van Abel, Thomas Drury, Charles Shackett, Greg Piefer
  • Separation of rare earth elements
    Patent number: 12584193
    Abstract: A method for purifying lutetium includes providing a solid composition comprising ytterbium and lutetium and subliming or distilling ytterbium from the solid composition at a temperature of about 1196° C. to about 3000° C. to leave a lutetium composition comprising a higher weight percentage of lutetium than was present in the solid composition.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: March 24, 2026
    Assignee: SHINE Technologies, LLC
    Inventors: Richard Sisson, Eric Van Abel, Thomas Drury, Charles Shackett, Greg Piefer
  • SEPARATION OF RARE EARTH ELEMENTS
    Publication number: 20250305091
    Abstract: A method for purifying lutetium includes providing a solid composition comprising ytterbium and lutetium and subliming or distilling ytterbium from the solid composition at a temperature of about 1196° C. to about 3000° C. to leave a lutetium composition comprising a higher weight percentage of lutetium than was present in the solid composition.
    Type: Application
    Filed: June 10, 2025
    Publication date: October 2, 2025
    Applicant: SHINE Technologies, LLC
    Inventors: Richard Sisson, Eric Van Abel, Thomas Drury, Charles Shackett, Greg Piefer
  • SEPARATION OF RARE EARTH ELEMENTS IN AN ENVIRONMENT WITH LOW PARTIAL PRESSURES OF OXYGEN CONTAINING GASES
    Publication number: 20250257425
    Abstract: A method for purifying lutetium that includes sublimating or distilling ytterbium from a solid composition comprising ytterbium and lutetium in an environment at a temperature in a range of from 400° C. to 2000° C. for a sublimation/distillation period to leave a lutetium composition comprising a higher weight percentage of lutetium than was present in the solid composition, wherein the environment comprises water vapor, and the water vapor is present in the environment at a partial pressure of 1.5 torr or less during the sublimation/distillation period.
    Type: Application
    Filed: September 6, 2023
    Publication date: August 14, 2025
    Applicant: Shine Technologies, LLC
    Inventors: Greg Piefer, Eric Van Abel, Charles Shackett, Thomas Drury, Richard Sisson
  • SEPARATION OF RARE EARTH ELEMENTS
    Publication number: 20230227942
    Abstract: A method for purifying lutetium includes providing a solid composition comprising ytterbium and lutetium and subliming or distilling ytterbium from the solid composition at a temperature of about 1196° C. to about 3000° C. to leave a lutetium composition comprising a higher weight percentage of lutetium than was present in the solid composition.
    Type: Application
    Filed: April 1, 2021
    Publication date: July 20, 2023
    Inventors: Richard Sisson, Eric Van Abel, Thomas Drury, Charles Shackett, Greg Piefer