CPC Subgroup
G01R 33/48 NMR imaging systems
Full Title
Arrangements or instruments for measuring magnetic variables > involving magnetic resonance (medical aspects A61B5/055; magnetic resonance gyrometers G01C19/60) > using nuclear magnetic resonance [NMR] (G01R33/24, G01R33/62 take precedence) > NMR imaging systems
11 direct subcodes
Child Classifications
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- G01R 33/483 with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
- G01R 33/50 based on the determination of relaxation times
- G01R 33/54 Signal processing systems, e.g. using pulse sequences
- G01R 33/58 Calibration of imaging systems, e.g. using test probes
Top Applicants
Top 10 applicants by patent filingsfor 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