CPC Main Group Additional Only
B23B 2233/00 Details of centres or drivers
8 direct subcodes
Child Classifications
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- B23B 2233/04 Means to allow the facing of the axial end of the workpiece near the axis of rotation
- B23B 2233/08 Centres or drivers comprising a ball
- B23B 2233/12 Centres or drivers with a special arrangement of bearings or with special bearings
- B23B 2233/16 Centres or drivers comrprising chucks
- B23B 2233/20 Centres or drivers with convex surfaces
- B23B 2233/24 Centres or drivers with inserts
- B23B 2233/28 Centres or drivers supporting the workpiece at three points around the circumference
- B23B 2233/32 Yieldable centres
Top Applicants
Top 10 applicants by patent filingsfor 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