Means for indicating or recording specially adapted for thermometers

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Details of thermometers not specially adapted for particular types of thermometer > Means for indicating or recording specially adapted for thermometers

CPC:

Details of thermometers not specially adapted for particular types of thermometer (circuits for reducing thermal inertia G01K7/42) > Means for indicating or recording specially adapted for thermometers

Additional Content IPC

Temperature indicating arrangements in hand irons internally heated by electricity Displaying temperature data in connection with air-conditioning, air-humidification, ventilation or use of air currents for screening

Of 5 combined children, 3 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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G01K 1/022 for recording since 2021 IPC+CPC Available in IPC and CPC
G01K 1/024 for remote indication since 2021 IPC+CPC Available in IPC and CPC
G01K 1/026 CPC only CPC only
G01K 1/028 CPC only CPC only
G01K 1/04 Scales +1 CPC 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