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IPC Main Group
G01T 5/00

Recording of movements or tracks of particles; Processing or analysis of such tracks

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
MEASUREMENT OF NUCLEAR OR X-RADIATION

Filing statistics

IPC G01T 5/00 belongs to the parent subclass G01T, which recorded 38,118 patent applications worldwide between 2013 and 2023. Annual filings declined from 3,303 in 2013 to 3,275 in 2023 (-1%), peaking at 3,821 applications in 2019. The most active applicants in class G01 are SGCC(STATE GRID CORPORATION OF CHINA) (41,447 applications), CHINESE ACADEMY OF SCIENCES (32,952 applications) and ROBERT BOSCH (16,470 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

measuring TRACK(S) of atomic or subatomic particles

6 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
  • G01T 5/1 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

Top Applicants

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

  1. SGCC(STATE GRID CORPORATION OF CHINA) 41,447
  2. CHINESE ACADEMY OF SCIENCES 32,952
  3. ROBERT BOSCH DE 16,470
  4. SAMSUNG ELECTRONICS COMPANY KR 10,052
  5. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 9,573
  6. ZHEJIANG UNIVERSITY 9,529
  7. GUANGDONG POWER GRID CORPORATION 8,615
  8. TSINGHUA UNIVERSITY 7,805
  9. HALLIBURTON ENERGY SERVICES GROUP US 7,796
  10. QUALCOMM US 7,171