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CPC Main Group
G21C 15/00

Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants

7 direct subcodes

Child Classifications

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  • G21C 15/16 comprising means for separating liquid and steam (separating in general B01D; steam traps F16D)
  • G21C 15/20 Partitions or thermal insulation between fuel channel and moderator
  • G21C 15/22 Structural association of coolant tubes with headers (joints of tubes in general F16L)
  • G21C 15/28 Selection of specific coolants (if serving as the moderator G21C5/12; compositions per se C09K5/00; );

Top Applicants

Top 10 applicants by patent filingsfor class G21, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINA GENERAL NUCLEAR POWER CORPORATION 1,383
  2. WESTINGHOUSE ELECTRIC CORPORATION US 1,347
  3. KOREA ATOMIC ENERGY RESEARCH INSTITUTE KR 1,303
  4. CGN POWER COMPANY 1,156
  5. CHINA NUCLEAR POWER ENGINEERING COMPANY 1,149
  6. KOREA HYDRO & NUCLEAR POWER COMPANY KR 1,146
  7. NUCLEAR POWER INSTITUTE OF CHINA 1,086
  8. CHINESE ACADEMY OF SCIENCES 765
  9. CEA (COMMISSARIAT A L'ENERGIE ATOMIQUE) FR 763
  10. CHINA INSTITUTE OF ATOMIC ENERGY 659