ClassID:

204442

H01J1/025 - CPC Classification

Classification description:

Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps; Main electrodes Hollow cathodes

Recent Application in this class:
#1
20250232940
2025-07-17

ELECTRON GUN

#2
20240006142
2024-01-04

Electron gun

#3
20220328274
2022-10-13

Method and apparatus for reducing the work function of polycrystalline metal hexaboride

#4
20210398765
2021-12-23

Stepped indirectly heated cathode with improved shielding

#5
20210057193
2021-02-25

Hollow cathode, an apparatus including a hollow cathode for manufacturing a semiconductor device, and a method of manufacturing a semiconductor device using a hollow cathode

#6
20190122867
2019-04-25

HOLLOW CATHODE, AN APPARATUS INCLUDING A HOLLOW CATHODE FOR MANUFACTURING A SEMICONDUCTOR DEVICE, AND A METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE USING A HOLLOW CATHODE

#7
20160365215
2016-12-15

High efficiency hollow cathode and cathode system applying same

#8
20160217961
2016-07-28

12CaO-7AlOelectride hollow cathode

#9
20160042906
2016-02-11

Partially insulated cathode

#10
20150115791
2015-04-30

Electrode for dielectric barrier discharge treatment of a substrate

#11
20140354138
2014-12-04

12CaO-7Al2O3 electride hollow cathode

#12
20120280610
2012-11-08

Systems and methods for enhancing electrical discharge

#13
20090226752
2009-09-10

ELECTRODES

#14
20090066212
2009-03-12

Apparatus and process for generating, accelerating and propagating beams of electrons and plasma

#15
20090058305
2009-03-05

Compact high current rare-earth emitter hollow cathode for hall effect thrusters

#16
20080290799
2008-11-27

AC-excited microcavity discharge device and method

#17
20080119105
2008-05-22

Method of making arrays of thin sheet microdischarge devices

#18
20070222358
2007-09-27

Industrial hollow cathode

#19
20060132017
2006-06-22

Industrial hollow cathode with radiation shield structure

#20
20060082319
2006-04-20

Metal/dielectric multilayer microdischarge devices and arrays

#21
20060012277
2006-01-19

Field emission assisted microdischarge devices

#22
20050148270
2005-07-07

Roll to roll method of making microdischarge devices and arrays

#23
20050136786
2005-06-23

Hollow cathodes with getter layers on inner and outer surfaces

#24
20050012441
2005-01-20

Channel spark source for generating a stable focused electron beam

#25
17871511
2022-11-01

Heaters for hollow cathodes

#26
16153297
2024-09-03

Microplasma-based heaterless, insertless cathode

#27
14814636
2016-12-06

Laser-sustained plasma light source

#28
14814622
2016-12-20

Laser-sustained plasma light source