CPC Main Group
G21C 17/00 Monitoring; Testing (measuring in general G01);
9 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- G21C 17/003 Remote inspection of vessels, e.g. pressure vessels
- G21C 17/017 Inspection or maintenance of pipe-lines or tubes in nuclear installations
- G21C 17/02 Devices or arrangements for monitoring coolant or moderator
- G21C 17/06 Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination (G21C17/08, G21C17/10 take precedence; detecting leaking fuel elements during reactor operation G21C17/04)
- G21C 17/08 Structural combination of reactor core or moderator structure with viewing means, e.g. with television camera, periscope, window
- G21C 17/10 Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
- G21C 17/14 Period meters
Top Applicants
Top 10 applicants by patent filingsfor class G21, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINA GENERAL NUCLEAR POWER CORPORATION 1,383
- WESTINGHOUSE ELECTRIC CORPORATION US 1,347
- KOREA ATOMIC ENERGY RESEARCH INSTITUTE KR 1,303
- CGN POWER COMPANY 1,156
- CHINA NUCLEAR POWER ENGINEERING COMPANY 1,149
- KOREA HYDRO & NUCLEAR POWER COMPANY KR 1,146
- NUCLEAR POWER INSTITUTE OF CHINA 1,086
- CHINESE ACADEMY OF SCIENCES 765
- CEA (COMMISSARIAT A L'ENERGIE ATOMIQUE) FR 763
- CHINA INSTITUTE OF ATOMIC ENERGY 659