IPC Main Group
G01P 3/00 Measuring linear or angular speed; Measuring differences of linear or angular speeds
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT; INDICATING DIRECTION OF MOVEMENT
Filing statistics
IPC G01P 3/00 belongs to the parent subclass G01P, which recorded 60,027 patent applications worldwide between 2013 and 2023. Annual filings grew from 4,116 in 2013 to 6,048 in 2023 (+47%), peaking at 6,844 applications in 2020. The most active applicants in class G01 are SGCC(STATE GRID CORPORATION OF CHINA) (41,447 applications), CHINESE ACADEMY OF SCIENCES (32,952 applications) and ROBERT BOSCH (16,470 applications).
Source: EPO PATSTAT, worldwide filings
Related Keywords
measuring number of REVOLUTIONS per unit timemeasuring number of ROTATIONS per unit time
6 direct subcodes
Child Classifications
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- G01P 3/02 Devices characterised by the use of mechanical means
- G01P 3/26 Devices characterised by the use of fluids
- G01P 3/36 Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
- G01P 3/42 Devices characterised by the use of electric or magnetic means
- G01P 3/62 Devices characterised by the determination of the variation of atmospheric pressure with height to measure the vertical components of speed
- G01P 3/64 Devices characterised by the determination of the time taken to traverse a fixed distance
Top Applicants
Top 10 applicants by patent filingsfor 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