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PCE
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IPC Subgroup
B23F 9/04

by planing or slotting with reciprocating cutting tools

Introduced: September 1968

Last revised: January 2006

Full Title

Making gears having teeth curved in their longitudinal direction > by planing or slotting with reciprocating cutting tools

Classification Context

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

2 direct subcodes

Child Classifications

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  • B23F 9/06 having a shape similar to a spur wheel of part thereof
  • B23F 9/07 having a shape similar to a crown wheel or a part thereof

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