H01J19/42 - CPC Classification Index

ClassID:

204814 ⎘

H01J19/42 - CPC Classification

Classification description:

Details of vacuum tubes of the types covered by group Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies

Sub-classes:

H01J19/44 » Insulation between electrodes or supports within the vacuum space 10
H01J19/46 » Mountings for the electrode assembly as a whole 2
H01J19/48 » Mountings for individual electrodes 11
H01J19/50 » Spacing members extending to the envelope 2

Recent Application in this class:

20250006425

2025-01-02

SYSTEMS AND METHODS FOR CREATING AN ELECTRON COIL MAGNET

20240290569

2024-08-29

MODULAR GETTERS AND GETTERS WITH DIFFERENT MATERIALS IN VACUUM ENCLOSURES

20210012994

2021-01-14

Annular cathode for vacuum tube

20200402757

2020-12-24

Image intensifier with thin layer transmission layer support structures

20200328057

2020-10-15

Analog amplification vacuum tube

20200090896

2020-03-19

Piezoelectric vacuum transistor

20190043685

2019-02-07

Shadowed grid structures for electrodes in vacuum electronics

20180218872

2018-08-02

Piezoelectric vacuum transistor

20180218871

2018-08-02

Piezoelectric vacuum transistor

#10

20170296844

2017-10-19

Beam position monitors for medical radiation machines

#11

20150117617

2015-04-30

X-ray tube

#12

20150071413

2015-03-12

Method of aging X-ray generator having carbon nanotube electron emitter

#13

20140369470

2014-12-18

Radiation generating tube, and radiation generating apparatus and radiation imaging system using the same

#14

20140270087

2014-09-18

X-ray generator including heat sink block

#15

20140184055

2014-07-03

Particle acceleration devices with improved geometries for vacuum-insulator-anode triple junctions

#16

20130234582

2013-09-12

FIELD EMISSION APPARATUS AND HAND-HELD NONDESTRUCTIVE INSPECTION APPARATUS

#17

20120146455

2012-06-14

CLOSELY SPACED ELECTRODES WITH A UNIFORM GAP

#18

20120081097

2012-04-05

High voltage high current regulator

#19

20090322221

2009-12-31

Closely spaced electrodes with a uniform gap

#20

20050189871

2005-09-01

Thermionic vacuum diode device with adjustable electrodes