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IPC Subgroup
G01M 15/04

Testing internal-combustion engines

Introduced: January 2006

Full Title

Testing of engines > Testing internal-combustion engines

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR

Related Keywords

TESTING of internal combustion engines

7 direct subcodes

Child Classifications

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  • G01M 15/05 by combined monitoring of two or more different engine parameters
  • G01M 15/06 by monitoring positions of pistons or cranks
  • G01M 15/08 by monitoring pressure in cylinders
  • G01M 15/09 by monitoring pressure in fluid ducts, e.g. in lubrication or cooling parts
  • G01M 15/1 by monitoring exhaust gases
  • G01M 15/11 by detecting misfire
  • G01M 15/12 by monitoring vibrations

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