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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 5/0004 CPC only CPC only
  • G01L 5/0047 CPC only CPC only
  • G01L 5/0052 CPC only CPC only
  • G01L 5/0057 CPC only CPC only
  • G01L 5/0095 CPC only CPC only
  • G01L 5/03 for measuring release force of ski safety bindings 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 5/14 for measuring the force of explosions; for measuring the energy of projectiles IPC+CPC Available in IPC and CPC
  • G01L 5/18 for measuring ratios of force IPC+CPC Available in IPC and CPC
  • G01L 5/20 for measuring wheel side-thrust 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

  1. SGCC(STATE GRID CORPORATION OF CHINA) 41,447
  2. CHINESE ACADEMY OF SCIENCES 32,952
  3. ROBERT BOSCH DE 16,470
  4. SAMSUNG ELECTRONICS COMPANY KR 10,052
  5. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 9,573
  6. ZHEJIANG UNIVERSITY 9,529
  7. GUANGDONG POWER GRID CORPORATION 8,615
  8. TSINGHUA UNIVERSITY 7,805
  9. HALLIBURTON ENERGY SERVICES GROUP US 7,796
  10. QUALCOMM US 7,171

Top Applicants (CPC)

Class G01,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 21,460
  2. ROBERT BOSCH DE 17,801
  3. SGCC(STATE GRID CORPORATION OF CHINA) 17,347
  4. SAMSUNG ELECTRONICS COMPANY KR 13,192
  5. QUALCOMM US 9,900
  6. HALLIBURTON ENERGY SERVICES GROUP US 9,742
  7. PHILIPS ELECTRONICS NL 7,249
  8. MITSUBISHI ELECTRIC CORPORATION JP 6,503
  9. ZHEJIANG UNIVERSITY 6,414
  10. DENSO CORPORATION JP 6,382