G21C 13/036 the tube passing through the vessel wall, i.e. continuing on both sides of the wall
Introduced: January 1990
Full Title
Full titles differ between systems:
Pressure vessels; Containment vessels; Containment in general > Details > Joints between tubes and vessel walls, e.g. taking into account thermal stresses > the tube passing through the vessel wall, i.e. continuing on both sides of the wall
Pressure vessels; Containment vessels; Containment in general (for chemical or physical processes B01J3/00; pressure vessels in general F16J12/00) > Details > Joints between tubes and vessel walls, e.g. taking into account thermal stresses > the tube passing through the vessel wall, i.e. continuing on both sides of the wall
No child classifications to compare. This is a leaf node in both IPC and CPC.
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
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