IPC Main Group
B24D 11/00 Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- GRINDING; POLISHING
- Subclass:
- TOOLS FOR GRINDING, BUFFING OR SHARPENING
Related Keywords
EMERY paperGLASS cloth; GLASS paperSAND paper; SAND -cloth
4 direct subcodes
Child Classifications
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- B24D 11/02 Backings, e.g. foils, webs, mesh fabrics
- B24D 11/04 Zonally-graded surfaces
- B24D 11/06 Connecting the ends of materials, e.g. for making abrasive belts
- B24D 11/08 Equipment for after-treatment of the coated backings, e.g. for flexing the coating
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