CPC Main Group
G01T 5/00 Recording of movements or tracks of particles (spark chambers H01J47/00); Processing or analysis of such tracks
Filing statistics
CPC G01T 5/00 belongs to the parent subclass G01T, which recorded 31,887 patent applications worldwide between 2013 and 2023. Annual filings declined from 2,593 in 2013 to 2,562 in 2023 (-1%), peaking at 3,345 applications in 2019. The most active applicants in class G01 are CHINESE ACADEMY OF SCIENCES (21,460 applications), ROBERT BOSCH (17,801 applications) and SGCC(STATE GRID CORPORATION OF CHINA) (17,347 applications).
Source: EPO PATSTAT, worldwide filings
8 direct subcodes
Child Classifications
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- G01T 5/02 Processing of tracks; Analysis of tracks
- G01T 5/04 Cloud chambers, e.g. Wilson chamber
- G01T 5/06 Bubble chambers
- G01T 5/08 Scintillation chambers (discharge tubes H01J40/00, H01J47/00)
- G01T 5/10 Plates or blocks in which tracks of nuclear particles are made visible by after-treatment, e.g. using photographic emulsion, using mica
- G01T 5/12 Circuit arrangements with multi-wire or parallel-plate chambers, e.g. spark chambers (tubes per se H01J47/00)
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