DIFF Subgroup
B24B 47/10 for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Drives or gearings for grinding machines or devices; Equipment therefor > for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
CPC:
Drives or gearings; Equipment therefor > for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B24B 47/12 by mechanical gearing or electric power (B24B47/16 takes precedence) IPC+CPC Available in IPC and CPC
- B24B 47/16 performing a reciprocating movement, e.g. during which the sense of rotation of the working-spindle is reversed IPC+CPC Available in IPC and CPC
- B24B 47/18 for rotating the spindle at a speed adaptable to wear of the grinding wheel IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B24,2013–2023, worldwide · Source: EPO PATSTAT
- DISCO ABRASIVE SYSTEM 3,084
- APPLIED MATERIALS US 1,570
- EBARA CORPORATION JP 1,393
- DISCO CORPORATION JP 1,368
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,270
- EBARA CORPORATION 1,016
- FUJIMI JP 829
- ZHEJIANG UNIVERSITY OF TECHNOLOGY 804
- ROBERT BOSCH DE 803
- SAINT-GOBAIN ABRASIVES US 781
Top Applicants (CPC)
Class B24,2013–2023, worldwide · Source: EPO PATSTAT
- DISCO CORPORATION JP 2,092
- APPLIED MATERIALS US 1,813
- EBARA CORPORATION JP 1,804
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,329
- ROBERT BOSCH DE 863
- FUJIMI JP 858
- SAINT-GOBAIN ABRASIVES US 833
- EBARA CORPORATION 810
- SAINT-GOBAIN ABRASIVES FR 782
- DISCO ABRASIVE SYSTEM 735