DIFF Main Group
B23B 5/00 Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
Introduced: September 1968
Of 11 combined children, 10 exist in both systems.
1 codes exist only in IPC.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B23B 5/02 for turning hubs or brake drums (B23B5/04 takes precedence) IPC+CPC Available in IPC and CPC
- B23B 5/04 for reconditioning hubs or brake drums or axle spindles without removing same from the vehicle IPC+CPC Available in IPC and CPC
- B23B 5/08 for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning IPC+CPC Available in IPC and CPC
- B23B 5/16 for bevelling, chamfering, or deburring the ends of bars or tubes +4 CPC IPC+CPC Available in IPC and CPC
- B23B 5/18 for turning crankshafts, eccentrics, or cams, e.g. crankpin lathes −1 IPC IPC+CPC Available in IPC and CPC
- B23B 5/24 for turning pistons or other workpieces to a slightly non-circular cross-section IPC only IPC only
- B23B 5/26 for simultaneously turning internal and external surfaces of a body IPC+CPC Available in IPC and CPC
- B23B 5/28 for turning wheels or wheel sets or cranks thereon, i.e. wheel lathes −2 IPC IPC+CPC Available in IPC and CPC
- B23B 5/36 for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes +1 CPC −2 IPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
Class B23,2013–2023, worldwide · Source: EPO PATSTAT
- ITW (ILLINOIS TOOL WORKS) US 3,642
- DISCO CORPORATION JP 3,316
- FANUC JP 3,111
- ROBERT BOSCH DE 2,711
- FANUC 2,163
- GE (GENERAL ELECTRIC COMPANY) US 2,113
- ISCAR IL 1,516
- SIEMENS DE 1,459
- LINCOLN GLOBAL US 1,433
- KOBE STEEL JP 1,423