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DIFF Subgroup
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)

Introduced: September 1968

Title

Titles differ between systems:

IPC: into open-ended moulds

CPC: into open-ended moulds (B22D11/06, B22D11/07 take precedence; plants for continuous casting, e.g. for upwardly drawing the strand B22D11/14)

Full Title

Full titles differ between systems:

IPC:

Continuous casting of metals, i.e. casting in indefinite lengths > into open-ended moulds

CPC:

Continuous casting of metals, i.e. casting in indefinite lengths (metal drawing, metal extruding B21C) > into open-ended moulds (B22D11/06, B22D11/07 take precedence; plants for continuous casting, e.g. for upwardly drawing the strand B22D11/14)

Of 15 combined children, 10 exist in both systems.

5 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2000.

Child Classifications

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  • B22D 11/0401 CPC only CPC only
  • B22D 11/0403 CPC only CPC only
  • B22D 11/0405 CPC only CPC only
  • B22D 11/0406 CPC only CPC only
  • B22D 11/0408 CPC only CPC only
  • B22D 11/041 for vertical casting (B22D11/043, B22D11/049 - B22D11/059 take precedence) since 2000 IPC+CPC Available in IPC and CPC
  • B22D 11/043 Curved moulds (B22D11/049 - B22D11/059 take precedence) since 2000 IPC+CPC Available in IPC and CPC
  • B22D 11/049 for direct chill casting, e.g. electromagnetic casting since 2000 IPC+CPC Available in IPC and CPC
  • B22D 11/05 into moulds having adjustable walls since 2000 IPC+CPC Available in IPC and CPC
  • B22D 11/051 into moulds having oscillating walls since 2000 IPC+CPC Available in IPC and CPC
  • B22D 11/055 Cooling the moulds since 2000 IPC+CPC Available in IPC and CPC
  • B22D 11/057 Manufacturing or calibrating the moulds since 2000 IPC+CPC Available in IPC and CPC
  • B22D 11/059 Mould materials or platings since 2000 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B22,2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 1,719
  2. CHINESE ACADEMY OF SCIENCES 1,489
  3. POSCO (POHANG IRON AND STEEL COMPANY) KR 1,248
  4. TOYOTA MOTOR CORPORATION 1,043
  5. SIEMENS DE 1,028
  6. CENTRAL SOUTH UNIVERSITY 959
  7. HEWLETT-PACKARD DEVELOPMENT COMPANY US 891
  8. UNITED TECHNOLOGIES CORPORATION (UTC) US 786
  9. UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING 769
  10. JFE STEEL JP 761

Top Applicants (CPC)

Class B22,2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 2,157
  2. HEWLETT-PACKARD DEVELOPMENT COMPANY US 1,633
  3. SIEMENS DE 1,267
  4. POSCO (POHANG IRON AND STEEL COMPANY) KR 1,124
  5. CHINESE ACADEMY OF SCIENCES 1,040
  6. UNITED TECHNOLOGIES CORPORATION (UTC) US 1,015
  7. JFE STEEL JP 884
  8. CENTRAL SOUTH UNIVERSITY 810
  9. HITACHI METALS JP 641
  10. SINTOKOGIO JP 624