CPC Subgroup
G01M 15/04 Testing internal-combustion engines
Full Title
Testing of engines > Testing internal-combustion engines
8 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- 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 15/10 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
- 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