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 3/08 Turning-machines characterised by the use of faceplates
- B23B 3/16 Turret lathes for turning individually-chucked workpieces
- B23B 3/22 Turning-machines or devices with rotary tool heads
- B23B 3/28 Turning-machines in which the feed is controlled by a copying device, i.e. copying lathes
- B23B 3/3 Turning-machines with two or more working-spindles, e.g. in fixed arrangement
- 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
- ITW (ILLINOIS TOOL WORKS) US 3,407
- FANUC JP 3,120
- DISCO ABRASIVE SYSTEM 2,777
- HAN'S LASER TECHNOLOGY INDUSTRY GROUP COMPANY 2,629
- ROBERT BOSCH DE 2,468
- FANUC 2,273
- DISCO CORPORATION JP 2,267
- GE (GENERAL ELECTRIC COMPANY) US 1,611
- CHINESE ACADEMY OF SCIENCES 1,534
- ISCAR IL 1,499