CPC Subgroup
B24B 5/18 involving centreless means for supporting, guiding, floating or rotating work (centreless turning B23B5/08; centreless grinding of threads B23G1/42)
Full Title
Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor (B24B11/00 - B24B21/00 take precedence; honing machines or devices using abrading blocks performing axial and rotary movements superimposed on one another B24B33/00) > involving centreless means for supporting, guiding, floating or rotating work (centreless turning B23B5/08; centreless grinding of threads B23G1/42)
8 direct subcodes
Child Classifications
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- B24B 5/20 involving grooved abrading blocks
- B24B 5/22 for grinding cylindrical surfaces, e.g. on bolts
- B24B 5/24 for grinding conical surfaces
- B24B 5/26 for grinding peculiarly profiled surfaces, e.g. bulged
- B24B 5/28 for grinding outer surfaces concentrically to bores, involving additional centering means
- B24B 5/30 Regulating-wheels; Equipment therefor
- B24B 5/307 Means for supporting work
Top Applicants
Top 10 applicants by patent filingsfor 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