CPC Subgroup
G01K 17/08 based upon measurement of temperature difference
Full Title
Measuring quantity of heat (measuring temperature by calorimetry G01K3/00 - G01K11/00; specially adapted for measuring thermal properties of materials, e.g. specific heat, heat of combustion G01N) > Measuring quantity of heat conveyed by flowing media, e.g. in heating systems (G01K17/02, G01K17/04 take precedence) > based upon measurement of temperature difference
2 direct subcodes
Child Classifications
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- G01K 17/10 between an inlet and an outlet point, combined with measurement of rate of flow of the medium
- G01K 17/20 across a radiating surface, combined with ascertainment of the heat-transmission coefficient
Top Applicants
Top 10 applicants by patent filingsfor 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