CPC Subgroup
B24D 15/10 of safety-razor blades (devices with mechanically-operated parts B24B3/50)
Full Title
Hand tools or other devices for non-rotary grinding, polishing, or stropping > specially designed for sharpening cutting edges > of safety-razor blades (devices with mechanically-operated parts B24B3/50)
1 direct subcode
Child Classifications
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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