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DIFF Main Group
B23P 15/00

Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Introduced: September 1968

Of 20 combined children, 14 exist in both systems.

6 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B23P 15/003 CPC only CPC only
  • B23P 15/005 CPC only CPC only
  • B23P 15/006 CPC only CPC only
  • B23P 15/007 CPC only CPC only
  • B23P 15/008 CPC only CPC only
  • B23P 15/02 turbine or like blades from one piece IPC+CPC Available in IPC and CPC
  • B23P 15/04 turbine or like blades from several pieces IPC+CPC Available in IPC and CPC
  • B23P 15/08 piston rings from several pieces IPC+CPC Available in IPC and CPC
  • B23P 15/12 gratings IPC+CPC Available in IPC and CPC
  • B23P 15/14 gear parts, e.g. gear wheels IPC+CPC Available in IPC and CPC
  • B23P 15/16 plates with holes of very small diameter, e.g. for spinning or burner nozzles IPC+CPC Available in IPC and CPC
  • B23P 15/18 brake shoes IPC+CPC Available in IPC and CPC
  • B23P 15/20 railroad requirements, e.g. buffers IPC+CPC Available in IPC and CPC
  • B23P 15/22 cartridges or like shells IPC+CPC Available in IPC and CPC
  • B23P 15/26 heat exchangers IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B23,2013–2023, worldwide · Source: EPO PATSTAT

  1. ITW (ILLINOIS TOOL WORKS) US 3,407
  2. FANUC JP 3,120
  3. DISCO ABRASIVE SYSTEM 2,777
  4. HAN'S LASER TECHNOLOGY INDUSTRY GROUP COMPANY 2,629
  5. ROBERT BOSCH DE 2,468
  6. FANUC 2,273
  7. DISCO CORPORATION JP 2,267
  8. GE (GENERAL ELECTRIC COMPANY) US 1,611
  9. CHINESE ACADEMY OF SCIENCES 1,534
  10. ISCAR IL 1,499

Top Applicants (CPC)

Class B23,2013–2023, worldwide · Source: EPO PATSTAT

  1. ITW (ILLINOIS TOOL WORKS) US 3,642
  2. DISCO CORPORATION JP 3,316
  3. FANUC JP 3,111
  4. ROBERT BOSCH DE 2,711
  5. FANUC 2,163
  6. GE (GENERAL ELECTRIC COMPANY) US 2,113
  7. ISCAR IL 1,516
  8. SIEMENS DE 1,459
  9. LINCOLN GLOBAL US 1,433
  10. KOBE STEEL JP 1,423