G01K 7/12 Arrangements with respect to the cold junction, e.g. preventing influence of temperature of surrounding air
Introduced: September 1968
Full Title
Full titles differ between systems:
Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat > using thermoelectric elements, e.g. thermocouples > Arrangements for compensating for auxiliary variables, e.g. length of lead > Arrangements with respect to the cold junction, e.g. preventing influence of temperature of surrounding air
Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat (giving results other than momentary value of temperature G01K3/00) > using thermoelectric elements, e.g. thermocouples > Arrangements for compensating for auxiliary variables, e.g. length of lead > Arrangements with respect to the cold junction, e.g. preventing influence of temperature of surrounding air
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1995.
Child Classifications
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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