DIFF Main Group
B22D 11/00 Continuous casting of metals, i.e. casting in indefinite lengths (metal drawing, metal extruding B21C)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Continuous casting of metals, i.e. casting in indefinite lengths
CPC: Continuous casting of metals, i.e. casting in indefinite lengths (metal drawing, metal extruding B21C)
Full Title
Full titles differ between systems:
IPC:
Continuous casting of metals, i.e. casting in indefinite lengths
CPC:
Continuous casting of metals, i.e. casting in indefinite lengths (metal drawing, metal extruding B21C)
Of 15 combined children, 9 exist in both systems.
6 codes are CPC-only extensions.
4 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B22D 11/01 without moulds, e.g. on molten surfaces since 1974 +1 CPC IPC+CPC Available in IPC and CPC
- B22D 11/04 into open-ended moulds (B22D11/06, B22D11/07 take precedence; plants for continuous casting, e.g. for upwardly drawing the strand B22D11/14) +5 CPC IPC+CPC Available in IPC and CPC
- B22D 11/06 into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars +9 CPC IPC+CPC Available in IPC and CPC
- B22D 11/10 Supplying or treating molten metal (B22D41/00 takes precedence) IPC+CPC Available in IPC and CPC
- B22D 11/12 Accessories for subsequent treating or working cast stock in situ (rolling immediately subsequent to continuous casting B21B1/46, B21B13/22) +5 CPC IPC+CPC Available in IPC and CPC
- B22D 11/16 Controlling or regulating processes or operations since 1974 +5 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B22,2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 1,719
- CHINESE ACADEMY OF SCIENCES 1,489
- POSCO (POHANG IRON AND STEEL COMPANY) KR 1,248
- TOYOTA MOTOR CORPORATION 1,043
- SIEMENS DE 1,028
- CENTRAL SOUTH UNIVERSITY 959
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 891
- UNITED TECHNOLOGIES CORPORATION (UTC) US 786
- UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING 769
- JFE STEEL JP 761
Top Applicants (CPC)
Class B22,2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 2,157
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 1,633
- SIEMENS DE 1,267
- POSCO (POHANG IRON AND STEEL COMPANY) KR 1,124
- CHINESE ACADEMY OF SCIENCES 1,040
- UNITED TECHNOLOGIES CORPORATION (UTC) US 1,015
- JFE STEEL JP 884
- CENTRAL SOUTH UNIVERSITY 810
- HITACHI METALS JP 641
- SINTOKOGIO JP 624