CPC Subgroup Additional Only
G01N 2291/023 Solids
Full Title
Indexing codes associated with group G01N29/00 > Indexing codes associated with the analysed material > Solids
6 direct subcodes
Child Classifications
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- G01N 2291/0231 Composite or layered materials
- G01N 2291/0232 Glass, ceramics, concrete or stone
- G01N 2291/0234 Metals, e.g. steel
- G01N 2291/0235 Plastics; polymers; soft materials, e.g. rubber
- G01N 2291/0237 Thin materials, e.g. paper, membranes, thin films
- G01N 2291/0238 Wood
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