IPC Main Group
G01T 1/00 Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
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 1/00 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
8 direct subcodes
Child Classifications
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- G01T 1/02 Dosimeters
- G01T 1/15 Instruments in which pulses generated by a radiation detector are integrated, e.g. by a diode pump circuit
- G01T 1/16 Measuring radiation intensity
- G01T 1/29 Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
- G01T 1/3 Measuring half-life of a radioactive substance
- G01T 1/32 Measuring polarisation of particles
- G01T 1/34 Measuring cross-section, e.g. absorption cross-section of particles
- G01T 1/36 Measuring spectral distribution of X-rays or of nuclear radiation
Top Applicants
Top 10 applicants by patent filingsfor class G01, 2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 41,447
- CHINESE ACADEMY OF SCIENCES 32,952
- ROBERT BOSCH DE 16,470
- SAMSUNG ELECTRONICS COMPANY KR 10,052
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 9,573
- ZHEJIANG UNIVERSITY 9,529
- GUANGDONG POWER GRID CORPORATION 8,615
- TSINGHUA UNIVERSITY 7,805
- HALLIBURTON ENERGY SERVICES GROUP US 7,796
- QUALCOMM US 7,171