CPC Subgroup Additional Only
G01N 2291/028 Material parameters
Full Title
Indexing codes associated with group G01N29/00 > Indexing codes associated with the analysed material > Material parameters
10 direct subcodes
Child Classifications
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- G01N 2291/02809 Concentration of a compound, e.g. measured by a surface mass change
- G01N 2291/02818 Density, viscosity
- G01N 2291/02827 Elastic parameters, strength or force
- G01N 2291/02836 Flow rate, liquid level
- G01N 2291/02845 Humidity, wetness
- G01N 2291/02854 Length, thickness
- G01N 2291/02863 Electric or magnetic parameters
- G01N 2291/02872 Pressure
- G01N 2291/02881 Temperature
- G01N 2291/0289 Internal structure, e.g. defects, grain size, texture
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