CPC Main Group
B23F 15/00 Methods or machines for making gear wheels of special kinds not covered by groups B23F7/00 - B23F13/00
5 direct subcodes
Child Classifications
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- B23F 15/02 Making gear teeth on wheels of varying radius of operation, e.g. on elliptical wheels
- B23F 15/04 Making fine-pitch gear teeth on clock wheels or the like by special machining
- B23F 15/06 Making gear teeth on the front surface of wheels, e.g. for clutches or couplings with toothed faces
- B23F 15/08 Making intermeshing rotors, e.g. of pumps
Top Applicants
Top 10 applicants by patent filingsfor class B23, 2013–2023, worldwide · Source: EPO PATSTAT
- ITW (ILLINOIS TOOL WORKS) US 3,642
- DISCO CORPORATION JP 3,316
- FANUC JP 3,111
- ROBERT BOSCH DE 2,711
- FANUC 2,163
- GE (GENERAL ELECTRIC COMPANY) US 2,113
- ISCAR IL 1,516
- SIEMENS DE 1,459
- LINCOLN GLOBAL US 1,433
- KOBE STEEL JP 1,423