CPC Subgroup
B23H 9/18 Producing external conical surfaces or spikes (B23H9/08 takes precedence)
Full Title
Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects (heat treatment by cathodic discharge C21D1/38) > Producing external conical surfaces or spikes (B23H9/08 takes precedence)
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