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)

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).

Filing statistics

CPC subclass G01T 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