DIFF Main Group
G01L 5/00 Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
Introduced: September 1968
Additional Content IPC
Devices for sensing torque of dynamo-electric machines, or actuated thereby
Of 20 combined children, 12 exist in both systems.
8 codes are CPC-only extensions.
Child Classifications
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- G01L 5/04 for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands +3 CPC IPC+CPC Available in IPC and CPC
- G01L 5/12 for measuring axial thrust in a rotary shaft, e.g. of propulsion plants IPC+CPC Available in IPC and CPC
- G01L 5/13 for measuring the tractive or propulsive power of vehicles +2 CPC IPC+CPC Available in IPC and CPC
- G01L 5/14 for measuring the force of explosions; for measuring the energy of projectiles IPC+CPC Available in IPC and CPC
- G01L 5/22 for measuring the force applied to control members, e.g. control members of vehicles, triggers +4 CPC IPC+CPC Available in IPC and CPC
- G01L 5/24 for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed +2 CPC IPC+CPC Available in IPC and CPC
- G01L 5/26 for determining the characteristic of torque in relation to revolutions per unit of time 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