Patents by Inventor Robert Lee SMITHSON

Robert Lee SMITHSON 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).

  • Cryogenic vacuum valve
    Patent number: 9964232
    Abstract: A multifunction cryogenic vacuum valve adapted to evacuate, seal off, and monitor vacuum levels and relieve cryogenic vacuum insulated systems is provided, wherein no thread sealant is necessary for the thermocouple threads.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: May 8, 2018
    Inventor: Robert Lee Smithson
  • CRYOGENIC VACUUM VALVE
    Publication number: 20170082216
    Abstract: A multifunction cryogenic vacuum valve adapted to evacuate, seal off, and monitor vacuum levels and relieve cryogenic vacuum insulated systems is provided, wherein no thread sealant is necessary for the thermocouple threads.
    Type: Application
    Filed: September 17, 2015
    Publication date: March 23, 2017
    Inventor: Robert Lee SMITHSON