Control of physical parameters of the fluid carrier

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography > Column chromatography > Conditioning of the fluid carrier; Flow patterns > Control of physical parameters of the fluid carrier

CPC:

Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography (G01N3/00, G01N5/00, G01N7/00, G01N9/00, G01N11/00, G01N13/00, G01N15/00, G01N17/00, G01N19/00, G01N21/00, G01N22/00, G01N23/00, G01N24/00, G01N25/00, G01N27/00, G01N29/00 take precedence) > Column chromatography > Conditioning of the fluid carrier; Flow patterns > Control of physical parameters of the fluid carrier

Of 5 combined children, 4 exist in both systems.

1 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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G01N 2030/285 2nd only CPC only CPC only
G01N 30/30 of temperature since 1985 +10 CPC IPC+CPC Available in IPC and CPC
G01N 30/32 of pressure or speed (G01N30/36 takes precedence) since 1985 +4 CPC IPC+CPC Available in IPC and CPC
G01N 30/34 of fluid composition, e.g. gradient (G01N30/36 takes precedence) since 1985 +3 CPC IPC+CPC Available in IPC and CPC
G01N 30/36 in high pressure liquid systems since 1985 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class G01,2013–2023, worldwide · Source: EPO PATSTAT

SGCC(STATE GRID CORPORATION OF CHINA) 41,447
CHINESE ACADEMY OF SCIENCES 32,952
ROBERT BOSCH DE 16,470
SAMSUNG ELECTRONICS COMPANY KR 10,052
SINOPEC (CHINA PETROCHEMICAL CORPORATION) 9,573
ZHEJIANG UNIVERSITY 9,529
GUANGDONG POWER GRID CORPORATION 8,615
TSINGHUA UNIVERSITY 7,805
HALLIBURTON ENERGY SERVICES GROUP US 7,796
QUALCOMM US 7,171

Top Applicants (CPC)

Class G01,2013–2023, worldwide · Source: EPO PATSTAT

CHINESE ACADEMY OF SCIENCES 21,460
ROBERT BOSCH DE 17,801
SGCC(STATE GRID CORPORATION OF CHINA) 17,347
SAMSUNG ELECTRONICS COMPANY KR 13,192
QUALCOMM US 9,900
HALLIBURTON ENERGY SERVICES GROUP US 9,742
PHILIPS ELECTRONICS NL 7,249
MITSUBISHI ELECTRIC CORPORATION JP 6,503
ZHEJIANG UNIVERSITY 6,414
DENSO CORPORATION JP 6,382