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IPC Subgroup
G21F 5/06

Details of, or accessories to, the containers

Introduced: January 1990

Last revised: January 2006

Full Title

Transportable or portable shielded containers > Details of, or accessories to, the containers

Classification Context

Section:
PHYSICS
Class:
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
Subclass:
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR

4 direct subcodes

Child Classifications

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  • G21F 5/08 Shock-absorbers, e.g. impact buffers for containers
  • G21F 5/1 Heat-removal systems, e.g. using circulating fluid or cooling fins
  • G21F 5/12 Closures for containers; Sealing arrangements
  • G21F 5/14 Devices for handling containers or shipping-casks, e.g. transporting devices

Top Applicants

Top 10 applicants by patent filingsfor 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