Cathodes heated directly by an electric current

Industry

  • CPC
  • H01J19/08
This industry / category may be too specific. Please go to a parent level for more data

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    PRINTED ACTIVE DEVICE

    • Publication number 20170345610
    • Publication date Nov 30, 2017
    • British Telecommunications public limited company
    • Robert GHANEA-HERCOCK
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    VACUUM TUBE

    • Publication number 20170103867
    • Publication date Apr 13, 2017
    • NORITAKE ITRON CORPORATION
    • Kazunori TATSUDA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    HALL-EFFECT MOTOR IN WHICH THE TEMPERATURE OF THE CATHODE-HEATING D...

    • Publication number 20130125526
    • Publication date May 23, 2013
    • SNECMA
    • Frédéric Marchandise
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Solid state vacuum devices and method for making the same

    • Publication number 20030146681
    • Publication date Aug 7, 2003
    • InnoSys, Inc.
    • RueyJen Hwu
    • H01 - BASIC ELECTRIC ELEMENTS