IPC Subgroup
G21C 1/06 Heterogeneous reactors, i.e. in which fuel and moderator are separated
Introduced: September 1968
Last revised: January 2006
Full Title
Reactor types > Thermal reactors > Heterogeneous reactors, i.e. in which fuel and moderator are separated
Classification Context
- Section:
- PHYSICS
- Class:
- NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- Subclass:
- NUCLEAR REACTORS
4 direct subcodes
Child Classifications
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- G21C 1/07 Pebble-bed reactors; Reactors with granular fuel
- G21C 1/08 moderator being highly pressurised, e.g. boiling-water reactor, integral-superheat reactor, pressurised-water reactor
- G21C 1/14 moderator being substantially not pressurised, e.g. swimming-pool reactor
- G21C 1/22 using liquid or gaseous fuel
Top Applicants
Top 10 applicants by patent filingsfor class G21, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINA GENERAL NUCLEAR POWER CORPORATION 2,364
- CGN POWER COMPANY 1,899
- CHINA NUCLEAR POWER ENGINEERING COMPANY 1,870
- NUCLEAR POWER INSTITUTE OF CHINA 1,517
- KOREA ATOMIC ENERGY RESEARCH INSTITUTE KR 1,367
- WESTINGHOUSE ELECTRIC CORPORATION US 1,295
- KOREA HYDRO & NUCLEAR POWER COMPANY KR 1,196
- CHINESE ACADEMY OF SCIENCES 1,044
- CHINA INSTITUTE OF ATOMIC ENERGY 1,011
- HITACHI-GE NUCLEAR ENERGY 955