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IPC Subgroup
B23B 31/24

characterised by features relating primarily to remote control of the gripping means

Introduced: September 1968

Last revised: January 2006

Full Title

Chucks; Expansion mandrels; Adaptations thereof for remote control > Chucks > characterised by features relating primarily to remote control of the gripping means

Classification Context

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

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 31/3 using fluid-pressure means in the chuck

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