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DIFF Main Group
B23C 3/00

Milling particular work; Special milling operations; Machines therefor (milling gear-teeth B23F, )

Introduced: September 1968

Title

Titles differ between systems:

IPC: Milling particular work; Special milling operations; Machines therefor

CPC: Milling particular work; Special milling operations; Machines therefor (milling gear-teeth B23F, )

Full Title

Full titles differ between systems:

IPC:

Milling particular work; Special milling operations; Machines therefor

CPC:

Milling particular work; Special milling operations; Machines therefor (milling gear-teeth B23F, )

Of 15 combined children, 13 exist in both systems.

2 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B23C 3/007 CPC only CPC only
  • B23C 3/06 Milling crankshafts IPC+CPC Available in IPC and CPC
  • B23C 3/08 Milling cams, camshafts, or the like IPC+CPC Available in IPC and CPC
  • B23C 3/10 Relieving by milling IPC+CPC Available in IPC and CPC
  • B23C 3/13 Surface milling of plates, sheets or strips since 1974 IPC+CPC Available in IPC and CPC
  • B23C 3/14 Scrubbing or peeling ingots or similar workpieces IPC+CPC Available in IPC and CPC
  • B23C 3/22 Forming overlapped joints, e.g. of the ends of piston-rings IPC+CPC Available in IPC and CPC
  • B23C 3/24 Making square or polygonal ends on workpieces, e.g. key studs on tools IPC+CPC Available in IPC and CPC
  • B23C 3/26 Making square or polygonal holes in workpieces, e.g. key holes in tools IPC+CPC Available in IPC and CPC
  • B23C 3/36 Milling milling-cutters (B23C3/28 takes precedence) 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