IPC Subgroup
G21C 21/02 Manufacture of fuel elements or breeder elements contained in non-active casings
Introduced: September 1968
Last revised: January 2006
Full Title
Apparatus or processes specially adapted to the manufacture of reactors or parts thereof > Manufacture of fuel elements or breeder elements contained in non-active casings
Classification Context
- Section:
- PHYSICS
- Class:
- NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- Subclass:
- NUCLEAR REACTORS
7 direct subcodes
Child Classifications
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- G21C 21/04 by vibrational compaction or tamping
- G21C 21/06 by swaging
- G21C 21/08 by a slip-fit cladding process
- G21C 21/1 by extrusion, drawing, or stretching
- G21C 21/12 by hydrostatic or thermo-pneumatic canning
- G21C 21/14 by plating in a fluid
- G21C 21/16 by casting or dipping techniques
Top Applicants
Top 10 applicants by patent filingsfor class G21, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINA GENERAL NUCLEAR POWER CORPORATION 2,364
- CGN POWER COMPANY 1,899
- CHINA NUCLEAR POWER ENGINEERING COMPANY 1,870
- NUCLEAR POWER INSTITUTE OF CHINA 1,517
- KOREA ATOMIC ENERGY RESEARCH INSTITUTE KR 1,367
- WESTINGHOUSE ELECTRIC CORPORATION US 1,295
- KOREA HYDRO & NUCLEAR POWER COMPANY KR 1,196
- CHINESE ACADEMY OF SCIENCES 1,044
- CHINA INSTITUTE OF ATOMIC ENERGY 1,011
- HITACHI-GE NUCLEAR ENERGY 955