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DIFF Subgroup
B23C 3/02

Milling surfaces of revolution (B23C3/06, B23C3/08 take precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Milling surfaces of revolution

CPC: Milling surfaces of revolution (B23C3/06, B23C3/08 take precedence)

Full Title

Full titles differ between systems:

IPC:

Milling particular work; Special milling operations; Machines therefor > Milling surfaces of revolution

CPC:

Milling particular work; Special milling operations; Machines therefor (milling gear-teeth B23F, ) > Milling surfaces of revolution (B23C3/06, B23C3/08 take precedence)

Of 3 combined children, 2 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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  • B23C 3/04 while revolving the work 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