ClassID:

205435

H01J41/02 - 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

Sub-classes:
Recent Application in this class:
#1
20250308869
2025-10-02

PHOTOIONIZATION DETECTOR (PID) LAMP ASSEMBLY AND A METHOD TO MANUFACTURE THE PID LAMP ASSEMBLY

#2
20250046589
2025-02-06

CHAMBER FOR AN IONIZATION VACUUM GAUGE

#3
20240194465
2024-06-13

Chamber for an ionization vacuum gauge

#4
20220037125
2022-02-03

Substrate processing apparatus and method of driving relay member

#5
20200161109
2020-05-21

Fast pressure sensing system

#6
20180052127
2018-02-22

Device for detecting faults in rails by measuring impedance

#7
20170248485
2017-08-31

Spark gap device and method of measurement of X-ray tube vacuum pressure

#8
20170146420
2017-05-25

Ionization gauge for high pressure operation

#9
20170097438
2017-04-06

Method for determining at least one physical parameter using a sensor unit

#10
20160273523
2016-09-22

Ground based systems and methods for testing reaction thrusters

#11
20160240479
2016-08-18

System and method for identifying operating temperatures and modifying of integrated circuits

#12
20160131548
2016-05-12

Long lifetime cold cathode ionization vacuum gauge design

#13
20150300904
2015-10-22

Ionization gauge for high pressure operation

#14
20150276677
2015-10-01

Ultrasensitive ion detector using carbon nanotubes or graphene

#15
20150137001
2015-05-21

Charged particle beam instrument

#16
20150108993
2015-04-23

Ionization gauge with emission current and bias potential control

#17
20140152320
2014-06-05

Ionization gauge with operational parameters and geometry designed for high pressure operation

#18
20110163754
2011-07-07

Ionization gauge with emission current and bias potential control

#19
20110062961
2011-03-17

Ionization gauge with operational parameters and geometry designed for high pressure operation

#20
20100090703
2010-04-15

Molecular shield for an ionizaton vacuum gauge

#21
20100076712
2010-03-25

Gas analyzer

#22
20090015264
2009-01-15

Ionization gauge with a cold electron source