CPC Main Group
G01L 3/00 Measuring torque, work, mechanical power, or mechanical efficiency, in general
Filing statistics
CPC G01L 3/00 belongs to the parent subclass G01L, which recorded 97,855 patent applications worldwide between 2013 and 2023. Annual filings grew from 5,225 in 2013 to 8,981 in 2023 (+72%), peaking at 11,079 applications in 2020. The most active applicants in class G01 are CHINESE ACADEMY OF SCIENCES (21,460 applications), ROBERT BOSCH (17,801 applications) and SGCC(STATE GRID CORPORATION OF CHINA) (17,347 applications).
Source: EPO PATSTAT, worldwide filings
4 direct subcodes
Child Classifications
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- G01L 3/02 Rotary-transmission dynamometers
- G01L 3/16 Rotary-absorption dynamometers, e.g. of brake type
- G01L 3/24 Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
- G01L 3/26 Devices for measuring efficiency, i.e. the ratio of power output to power input
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