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PCE
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DIFF Subgroup
G21C 17/10

Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Monitoring; Testing > Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain

CPC:

Monitoring; Testing (measuring in general G01); > Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain

Of 6 combined children, 5 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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  • G21C 17/102 CPC only CPC only
  • G21C 17/104 Measuring reactivity since 1990 IPC+CPC Available in IPC and CPC
  • G21C 17/108 Measuring reactor flux since 1990 IPC+CPC Available in IPC and CPC
  • G21C 17/112 Measuring temperature since 1990 IPC+CPC Available in IPC and CPC
  • G21C 17/116 Passages or insulators, e.g. for electric cables since 1990 IPC+CPC Available in IPC and CPC
  • G21C 17/12 Sensitive element forming part of control element IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class G21,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINA GENERAL NUCLEAR POWER CORPORATION 2,364
  2. CGN POWER COMPANY 1,899
  3. CHINA NUCLEAR POWER ENGINEERING COMPANY 1,870
  4. NUCLEAR POWER INSTITUTE OF CHINA 1,517
  5. KOREA ATOMIC ENERGY RESEARCH INSTITUTE KR 1,367
  6. WESTINGHOUSE ELECTRIC CORPORATION US 1,295
  7. KOREA HYDRO & NUCLEAR POWER COMPANY KR 1,196
  8. CHINESE ACADEMY OF SCIENCES 1,044
  9. CHINA INSTITUTE OF ATOMIC ENERGY 1,011
  10. HITACHI-GE NUCLEAR ENERGY 955

Top Applicants (CPC)

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