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DIFF Subgroup
B22D 17/20

Accessories: Details

Introduced: September 1968

Title

Titles differ between systems:

IPC: Accessories; Details

CPC: Accessories: Details

Full Title

Full titles differ between systems:

IPC:

Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure > Accessories; Details

CPC:

Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure > Accessories: Details

Of 10 combined children, 5 exist in both systems.

5 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B22D 17/2007 CPC only CPC only
  • B22D 17/2076 CPC only CPC only
  • B22D 17/2084 CPC only CPC only
  • B22D 17/2092 CPC only CPC only
  • B22D 17/28 Melting pots IPC+CPC Available in IPC and CPC
  • B22D 17/30 Accessories for supplying molten metal, e.g. in rations (supplying molten metal in ration in general B22D39/00) IPC+CPC Available in IPC and CPC
  • B22D 17/32 Controlling equipment 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