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CPC Main Group
G01T 5/00

Recording of movements or tracks of particles (spark chambers H01J47/00); Processing or analysis of such tracks

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

Top Applicants

Top 10 applicants by patent filingsfor class G01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 21,460
  2. ROBERT BOSCH DE 17,801
  3. SGCC(STATE GRID CORPORATION OF CHINA) 17,347
  4. SAMSUNG ELECTRONICS COMPANY KR 13,192
  5. QUALCOMM US 9,900
  6. HALLIBURTON ENERGY SERVICES GROUP US 9,742
  7. PHILIPS ELECTRONICS NL 7,249
  8. MITSUBISHI ELECTRIC CORPORATION JP 6,503
  9. ZHEJIANG UNIVERSITY 6,414
  10. DENSO CORPORATION JP 6,382