CPC Subgroup
B23C 3/26 Making square or polygonal holes in workpieces, e.g. key holes in tools
Full Title
Milling particular work; Special milling operations; Machines therefor (milling gear-teeth B23F, ) > Making square or polygonal holes in workpieces, e.g. key holes in tools
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