CPC Main Group
B23C 3/00 Milling particular work; Special milling operations; Machines therefor (milling gear-teeth B23F, )
Filing statistics
CPC B23C 3/00 belongs to the parent subclass B23C, which recorded 24,967 patent applications worldwide between 2013 and 2023. Annual filings declined from 1,871 in 2013 to 1,686 in 2023 (-10%), peaking at 2,770 applications in 2017. The most active applicants in class B23 are ITW (ILLINOIS TOOL WORKS) (3,642 applications), DISCO CORPORATION (3,316 applications) and FANUC (3,111 applications).
Source: EPO PATSTAT, worldwide filings
15 direct subcodes
Child Classifications
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- B23C 3/02 Milling surfaces of revolution (B23C3/06, B23C3/08 take precedence)
- B23C 3/06 Milling crankshafts
- B23C 3/08 Milling cams, camshafts, or the like
- B23C 3/10 Relieving by milling
- B23C 3/12 Trimming or finishing edges, e.g. deburring welded corners
- B23C 3/13 Surface milling of plates, sheets or strips
- B23C 3/14 Scrubbing or peeling ingots or similar workpieces
- B23C 3/16 Working surfaces curved in two directions
- B23C 3/22 Forming overlapped joints, e.g. of the ends of piston-rings
- B23C 3/24 Making square or polygonal ends on workpieces, e.g. key studs on tools
- B23C 3/26 Making square or polygonal holes in workpieces, e.g. key holes in tools
- B23C 3/28 Grooving workpieces (tread-cutting by milling B23G1/32)
- B23C 3/36 Milling milling-cutters (B23C3/28 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