G21C 15/02 Arrangements or disposition of passages in which heat is transferred to the coolant;
Full Title
Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants > Arrangements or disposition of passages in which heat is transferred to the coolant;
Filing statistics
CPC G21C 15/02 belongs to the parent subclass G21C, which recorded 23,858 patent applications worldwide between 2013 and 2023. Annual filings grew from 2,031 in 2013 to 2,125 in 2023 (+5%), peaking at 2,595 applications in 2021. The most active applicants in class G21 are CHINA GENERAL NUCLEAR POWER CORPORATION (1,383 applications), WESTINGHOUSE ELECTRIC CORPORATION (1,347 applications) and KOREA ATOMIC ENERGY RESEARCH INSTITUTE (1,303 applications).
Source: EPO PATSTAT, worldwide filings
5 direct subcodes
Child Classifications
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- G21C 15/04 from fissile or breeder material
- G21C 15/08 from moderating material
- G21C 15/10 from reflector or thermal shield
- G21C 15/12 from pressure vessel; from containment vessel
- G21C 15/14 from headers; from joints in ducts
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