involving magnetic resonance (medical aspects A61B5/055; magnetic resonance gyrometers G01C19/60)

Introduced: January 1985

Title

Titles differ between systems:

IPC: involving magnetic resonance

CPC: involving magnetic resonance (medical aspects A61B5/055; magnetic resonance gyrometers G01C19/60)

Full Title

Full titles differ between systems:

IPC:

Arrangements or instruments for measuring magnetic variables > involving magnetic resonance

CPC:

Arrangements or instruments for measuring magnetic variables > involving magnetic resonance (medical aspects A61B5/055; magnetic resonance gyrometers G01C19/60)

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

5 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1985.

Child Classifications

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G01R 33/24 for measuring direction or magnitude of magnetic fields or magnetic flux since 1985 +2 CPC IPC+CPC Available in IPC and CPC
G01R 33/28 Details of apparatus provided for in groups G01R33/44 - G01R33/64 since 1990 +5 CPC IPC+CPC Available in IPC and CPC
G01R 33/44 using nuclear magnetic resonance [NMR] (G01R33/24, G01R33/62 take precedence) since 1990 +5 CPC IPC+CPC Available in IPC and CPC
G01R 33/60 using electron paramagnetic resonance (G01R33/24, G01R33/62 take precedence) since 1990 IPC+CPC Available in IPC and CPC
G01R 33/62 using double resonance (G01R33/24 takes precedence) since 1990 IPC+CPC Available in IPC and CPC
G01R 33/64 using cyclotron resonance (G01R33/24 takes precedence) since 1990 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