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IPC Main Group
B23F 23/00

Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
Subclass:
MAKING GEARS OR TOOTHED RACKS

4 direct subcodes

Child Classifications

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  • B23F 23/08 Index mechanisms
  • B23F 23/1 Arrangements for compensating irregularities in drives or indexing mechanisms
  • B23F 23/12 Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth

Top Applicants

Top 10 applicants by patent filingsfor 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