CPC Subgroup
G21D 3/08 Regulation of any parameters in the plant
Full Title
Control of nuclear power plant (control of nuclear reaction in general G21C7/00) > Regulation of any parameters in the plant
3 direct subcodes
Child Classifications
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- G21D 3/10 by a combination of a variable derived from neutron flux with other controlling variables, e.g. derived from temperature, cooling flow, pressure
- G21D 3/12 by adjustment of the reactor in response only to changes in engine demand
- G21D 3/18 by adjustment of plant external to the reactor only in response to change in reactivity
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