Tubes for determining the presence, intensity, density or energy of radiation or particles ( ; photoelectric discharge tubes not involving the ionisation of a gas H01J40/00 )

Introduced: January 1980

Title

Titles differ between systems:

IPC: Tubes for determining the presence, intensity, density or energy of radiation or particles

CPC: Tubes for determining the presence, intensity, density or energy of radiation or particles ( ; photoelectric discharge tubes not involving the ionisation of a gas H01J40/00 )

Full Title

Full titles differ between systems:

IPC:

Tubes for determining the presence, intensity, density or energy of radiation or particles

CPC:

Tubes for determining the presence, intensity, density or energy of radiation or particles ( ; photoelectric discharge tubes not involving the ionisation of a gas H01J40/00 )

Of 9 combined children, 6 exist in both systems.

3 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

Child Classifications

Navigate with arrow keys, Enter to open

H01J 47/001 +2 CPC CPC only CPC only
H01J 47/007 CPC only CPC only
H01J 47/008 CPC only CPC only
H01J 47/02 Ionisation chambers since 1980 +4 CPC IPC+CPC Available in IPC and CPC
H01J 47/06 Proportional counter tubes since 1980 +3 CPC IPC+CPC Available in IPC and CPC
H01J 47/08 Geiger-Müller counter tubes since 1980 IPC+CPC Available in IPC and CPC
H01J 47/10 Spark counters (H01J47/14 takes precedence; spark gaps H01T) since 1980 IPC+CPC Available in IPC and CPC
H01J 47/12 Neutron detector tubes, e.g. BF3 tubes since 1980 +5 CPC IPC+CPC Available in IPC and CPC
H01J 47/14 Parallel electrode spark or streamer chambers; Wire spark or streamer chambers since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class H01,2013–2023, worldwide · Source: EPO PATSTAT

TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
SAMSUNG ELECTRONICS COMPANY KR 42,206
LG CHEM KR 21,383
APPLIED MATERIALS US 20,441
LG ENERGY SOLUTION KR 20,279
SAMSUNG DISPLAY KR 19,725
CHINESE ACADEMY OF SCIENCES 19,400
TOYOTA MOTOR CORPORATION 18,819
SGCC(STATE GRID CORPORATION OF CHINA) 18,082
TOKYO ELECTRON JP 17,634

Top Applicants (CPC)

Class H01,2013–2023, worldwide · Source: EPO PATSTAT

SAMSUNG ELECTRONICS COMPANY KR 37,897
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
APPLIED MATERIALS US 21,640
LG ENERGY SOLUTION KR 20,770
LG CHEM KR 19,835
TOKYO ELECTRON JP 18,519
ROBERT BOSCH DE 14,595
INTEL CORPORATION US 13,580
MURATA MANUFACTURING COMPANY JP 12,151
SAMSUNG SDI COMPANY KR 12,080