G01T MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N23/00; tubes for determining the presence, intensity, density or energy of radiation or particles H01J47/00)
Introduced: September 1968
Description
G01T encompasses instruments and methods for detecting, measuring, and analyzing nuclear radiation and X-radiation, including their intensity, energy, and spectral properties. This subclass covers radiation detectors (such as ionization chambers, scintillation detectors, and semiconductor detectors), dosimetry devices, and associated electronic measurement systems used in medical imaging, nuclear medicine, radiation protection, and industrial applications. It includes techniques for quantifying dose rates, identifying radionuclides through spectroscopy, and monitoring radiation fields in real-time. Adjacent classifications cover related topics such as general testing procedures in G01 and specific applications in medical technology (A61) or nuclear reactor instrumentation (G21).
Title
Titles differ between systems:
IPC: MEASUREMENT OF NUCLEAR OR X-RADIATION
CPC: MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N23/00; tubes for determining the presence, intensity, density or energy of radiation or particles H01J47/00)
Full Title
Full titles differ between systems:
MEASUREMENT OF NUCLEAR OR X-RADIATION
MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N23/00; tubes for determining the presence, intensity, density or energy of radiation or particles H01J47/00)
Additional Content IPC
Glossary
measuring Attention is drawn to the Notes following the title of class . corpuscular radiation a stream of atomic or subatomic particles which may be charged positive or negative, or be uncharged
Limiting references
Radiation analysis of materials, mass spectrometry Secondary-electron-emitting electrodes in general Electric discharge tubes for analysing radiation or particles , , Construction of ionisation chambers Spark chambers Semiconductor detectors per se ,
Application references
Prospecting by the use of nuclear radiation, natural or induced
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
3 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G01T 1/00 Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation (G01T3/00, G01T5/00 take precedence) +2 CPC IPC+CPC Available in IPC and CPC
- G01T 3/00 Measuring neutron radiation (G01T5/00 takes precedence) +3 CPC IPC+CPC Available in IPC and CPC
- G01T 5/00 Recording of movements or tracks of particles (spark chambers H01J47/00); Processing or analysis of such tracks +2 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
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