Patents-Review.com
ClassID:

204586 ⎘

H01J7/18 - CPC Classification

Classification description:

Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps; Means for obtaining or maintaining the desired pressure within the vessel Means for absorbing or adsorbing gas, e.g. by gettering

Sub-classes:
Recent Application in this class:
#1
20240290569
2024-08-29

MODULAR GETTERS AND GETTERS WITH DIFFERENT MATERIALS IN VACUUM ENCLOSURES

 #2
20220316462
2022-10-06

Vacuum pumping system having multiple pumps

 #3
20220161181
2022-05-26

Getter activation under vacuum

 #4
20210031167
2021-02-04

Moisture and hydrogen adsorption getter and method of fabricating the same

 #5
20200058460
2020-02-20

Microwave amplification device including a microwave electron tube having a getter that can be controlled

 #6
20190333730
2019-10-31

Field emission device and field emission method

 #7
20190279837
2019-09-12

Electron microscope

 #8
20190143257
2019-05-16

Getter activation under vacuum

 #9
20190060863
2019-02-28

Moisture and hydrogen-absorbing getter and method for manufacturing same

 #10
20180195501
2018-07-12

Non-evaporable getter and non-evaporable getter pump

 #11
20180105948
2018-04-19

Electrochemical method and apparatus for forming a vacuum in a sealed enclosure

 #12
20170213685
2017-07-27

X-ray tube including hybrid electron emission source

 #13
20170213683
2017-07-27

APPARATUS AND METHOD FOR PREVENTING CONTAMINATION OF ACCELERATOR SYSTEMS BY AN ION PUMP

 #14
20160367934
2016-12-22

Gas-adsorbing device and evacuated insulating material using same

 #15
20160358741
2016-12-08

System and method for providing a clean environment in an electron-optical system

 #16
20160211105
2016-07-21

Vacuum assemblies and methods of formation

 #17
20160069338
2016-03-10

Non-evaporable getter and non-evaporable getter pump

 #18
20160069337
2016-03-10

Getter pump

 #19
20150191845
2015-07-09

Electrochemical method and apparatus for forming a vacuum in a sealed enclosure

 #20
20150123539
2015-05-07

Systems and methods for regulating pressure of a filled-in gas

 #21
20140369856
2014-12-18

Getter pump

 #22
20140145589
2014-05-29

Electron beam device, a getter sheet and a method of manufacturing an electron beam device provided with said getter sheet

 #23
20100035507
2010-02-11

Manufacturing method of image display apparatus

 #24
20090289186
2009-11-26

Small electron gun

 #25
20090022892
2009-01-22

Process for manufacturing devices carrying at least one active material by deposition of a low-melting alloy

 #26
20080297026
2008-12-04

APPARATUS OF FIELD EMISSION LIGHT SOURCE

 #27
20080284332
2008-11-20

GUN CHAMBER, CHARGED PARTICLE BEAM APPARATUS AND METHOD OF OPERATING SAME

 #28
20080283745
2008-11-20

EMITTER CHAMBER, CHARGED PARTICAL APPARATUS AND METHOD FOR OPERATING SAME

 #29
20080231183
2008-09-25

Apparatus for evacuating a field emission display

 #30
20080169759
2008-07-17

High pressure discharge lamp containing a getter device

 #31
20080042547
2008-02-21

Field emission system and method for improving its vacuum

 #32
20070236143
2007-10-11

Small electron gun

 #33
20070228919
2007-10-04

Field emission lamp and method for making the same

 #34
20070222356
2007-09-27

Field emission electron source and method for making the same

 #35
20070188075
2007-08-16

Field-emission electron source apparatus

 #36
20070096649
2007-05-03

Electrode-mounted getter

 #37
20070060007
2007-03-15

Method for improving vacuum

 #38
20060250086
2006-11-09

Vacuum Getter Chamber

 #39
20060250070
2006-11-09

Vacuum vessel and electron emission display device using the same

 #40
20060043871
2006-03-02

Image display device having an ion pump with reduced leakage

 #41
20060043870
2006-03-02

Image display apparatus with particular ion pump location

 #42
20060043865
2006-03-02

Image display apparatus provided with an ion pump assembly arranged within an external container

 #43
20060012301
2006-01-19

Vacuum getter chamber

 #44
20050231096
2005-10-20

Electron device with ring-less getter, method for affixing ring-less getter, and method for activating the same

 #45
20050136786
2005-06-23

Hollow cathodes with getter layers on inner and outer surfaces

 #46
20050052103
2005-03-10

Small electron gun