ClassID:

205436

H01J41/04 - CPC Classification

Classification description:

Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas ; Discharge tubes for evacuation by diffusion of ions; Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of thermionic cathodes

Recent Application in this class:
#1
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HIGH POWER ION BEAM GENERATOR SYSTEMS AND METHODS

#2
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HIGH POWER ION BEAM GENERATOR SYSTEMS AND METHODS

#3
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2024-10-24

HIGH POWER ION BEAM GENERATOR SYSTEMS AND METHODS

#4
20230380048
2023-11-23

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20230284369
2023-09-07

High power ion beam generator systems and methods

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20230171872
2023-06-01

High power ion beam generator systems and methods

#7
20230171871
2023-06-01

High power ion beam generator systems and methods

#8
20200343081
2020-10-29

Compact electrostatic ion pump

#9
20200196430
2020-06-18

High power ion beam generator systems and methods

#10
20200161109
2020-05-21

Fast pressure sensing system

#11
20200029419
2020-01-23

High power ion beam generator systems and methods

#12
20170146420
2017-05-25

Ionization gauge for high pressure operation

#13
20170010171
2017-01-12

Devices and methods for feedthrough leakage current detection and decontamination in ionization gauges

#14
20150300904
2015-10-22

Ionization gauge for high pressure operation

#15
20140368210
2014-12-18

Cold cathode ionization vacuum gauge and inner wall protection member

#16
20090146665
2009-06-11

Method and apparatus for shielding feedthrough pin insulators in an ionization gauge operating in harsh environments

#17
20090096460
2009-04-16

Ionization vacuum gauge

#18
20080315887
2008-12-25

Method and apparatus for maintaining emission capabilities of hot cathodes in harsh environments

#19
20080100301
2008-05-01

Method and apparatus for shielding feedthrough pin insulators in an ionization gauge operating in harsh environments

#20
20080018337
2008-01-24

Method and apparatus for maintaining emission capabilities of hot cathodes in harsh environments

#21
20070071638
2007-03-29

Parallel processing microfluidic chip

#22
20060202701
2006-09-14

Vacuum measuring gauge

#23
20060197537
2006-09-07

Ionization gauge

#24
20050184735
2005-08-25

Ionization gauge

#25
16996561
2022-03-08

Method and apparatus for characterizing homodyne transmitters and receivers

#26
16196697
2019-10-22

High power ion beam generator systems and methods