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IPC Subgroup
G01L 5/1

using electrical means

Introduced: September 1968

Last revised: January 2020

Full Title

Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes > for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands > using electrical means

Classification Context

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

7 direct subcodes

Child Classifications

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  • G01L 5/101 using sensors inserted into the flexible member
  • G01L 5/102 using sensors located at a non-interrupted part of the flexible member
  • G01L 5/103 using sensors fixed at one end of the flexible member
  • G01L 5/105 using electro-optical means
  • G01L 5/106 for measuring a reaction force applied on a cantilever beam
  • G01L 5/107 for measuring a reaction force applied on an element disposed between two supports, e.g. on a plurality of rollers or gliders
  • G01L 5/108 for measuring a reaction force applied on a single support, e.g. a glider

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