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IPC 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

Last revised: January 2006

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE

Filing statistics

IPC G01L 5/00 belongs to the parent subclass G01L, which recorded 145,069 patent applications worldwide between 2013 and 2023. Annual filings grew from 8,073 in 2013 to 16,364 in 2023 (+103%), peaking at 17,249 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

Additional Content

Devices for sensing torque of dynamo-electric machines, or actuated thereby

Related Keywords

measuring force of BLOW(S)measuring IMPACTmeasuring force of MUSCLES

12 direct subcodes

Child Classifications

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  • G01L 5/03 for measuring release force of ski safety bindings
  • G01L 5/12 for measuring axial thrust in a rotary shaft, e.g. of propulsion plants
  • G01L 5/13 for measuring the tractive or propulsive power of vehicles
  • G01L 5/14 for measuring the force of explosions; for measuring the energy of projectiles
  • G01L 5/18 for measuring ratios of force
  • G01L 5/2 for measuring wheel side-thrust
  • G01L 5/22 for measuring the force applied to control members, e.g. control members of vehicles, triggers
  • G01L 5/24 for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
  • G01L 5/26 for determining the characteristic of torque in relation to revolutions per unit of time
  • G01L 5/28 for testing brakes

Top Applicants

Top 10 applicants by patent filingsfor 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