IPC Subgroup
H01J 49/26 Mass spectrometers or separator tubes
Introduced: January 1980
Last revised: January 2006
Full Title
Particle spectrometers or separator tubes > Mass spectrometers or separator tubes
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
Additional Content
Ion-mobility spectrometry combined with mass spectrometry, for investigating the ionisation of gases Separation of different isotopes of the same chemical element by mass spectrography
Related Keywords
CALUTRONSMASS spectrometers or separator tubes
2 direct subcodes
Child Classifications
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- H01J 49/28 Static spectrometers
- H01J 49/34 Dynamic spectrometers
Top Applicants
Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
- SAMSUNG ELECTRONICS COMPANY KR 42,206
- LG CHEM KR 21,383
- APPLIED MATERIALS US 20,441
- LG ENERGY SOLUTION KR 20,279
- SAMSUNG DISPLAY KR 19,725
- CHINESE ACADEMY OF SCIENCES 19,400
- TOYOTA MOTOR CORPORATION 18,819
- SGCC(STATE GRID CORPORATION OF CHINA) 18,082
- TOKYO ELECTRON JP 17,634