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IPC Main Group
B23B 3/00

General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
Subclass:
TURNING; BORING

10 direct subcodes

Child Classifications

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  • B23B 3/02 Small lathes, e.g. for toolmakers
  • B23B 3/04 Turning-machines in which the workpiece is rotated by means at a distance from the headstock
  • B23B 3/06 Turning-machines or devices characterised only by the special arrangement of constructional units
  • B23B 3/28 Turning-machines in which the feed is controlled by a copying device, i.e. copying lathes
  • B23B 3/34 Short turning-machines with one or multiple working-spindles attended from the end
  • B23B 3/36 Associations of only turning-machines directed to a particular metal-working result

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