Honing machines or devices; Accessories therefor

Introduced: September 1968

IPC and CPC are identically structured here. All 7 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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B24B 33/02 designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes +3 CPC IPC+CPC Available in IPC and CPC
B24B 33/04 designed for working external surfaces of revolution IPC+CPC Available in IPC and CPC
B24B 33/05 designed for working grooves, e.g. in gun barrels IPC+CPC Available in IPC and CPC
B24B 33/055 designed for working plane surfaces since 1985 IPC+CPC Available in IPC and CPC
B24B 33/06 with controlling or gauging equipment (gauging in general G01B; controlling in general G05) IPC+CPC Available in IPC and CPC
B24B 33/08 Honing tools +9 CPC IPC+CPC Available in IPC and CPC
B24B 33/10 Accessories +1 CPC IPC+CPC Available in IPC and CPC

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

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