CPC Subgroup
B23B 31/24 characterised by features relating primarily to remote control of the gripping means
Full Title
Chucks ; Expansion mandrels; Adaptations thereof for remote control (faceplates B23Q1/50; rotary devices holding by magnetic and/or electrical force acting directly on work B23Q3/152) > Chucks > characterised by features relating primarily to remote control of the gripping means
3 direct subcodes
Child Classifications
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- B23B 31/26 using mechanical transmission through the working-spindle
- B23B 31/28 using electric or magnetic means in the chuck
- B23B 31/30 using fluid-pressure means in the chuck
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