IPC Subgroup
B24D 7/12 with apertures for inspecting the surface to be abraded
Introduced: September 1968
Last revised: January 2006
Full Title
Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor > with apertures for inspecting the surface to be abraded
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- GRINDING; POLISHING
- Subclass:
- TOOLS FOR GRINDING, BUFFING OR SHARPENING
Top Applicants
Top 10 applicants by patent filingsfor 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