CPC Subgroup Additional Only
B65H 2301/41432 special features of winding process
Full Title
Handling processes for sheets or webs > Type of handling process > Winding, unwinding > Winding > Performing winding process > special features of winding process
9 direct subcodes
Child Classifications
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- B65H 2301/414321 helical winding (B65H2701/18444 takes precedence)
- B65H 2301/414322 oscillated winding, i.e. oscillating the axis of the winding roller or material
- B65H 2301/414323 spiral winding, i.e. single layers not touching each other, e.g. for tyre rubber
- B65H 2301/414324 involving interleaf web/sheet, e.g. liner
- B65H 2301/414325 winding a core in-line with the web, e.g. wound core made out of sheet material
- B65H 2301/414326 winding on core with non-circular cross-sectional profile, e.g. polygonal, oval, flat or slightly curved
- B65H 2301/414327 winding on core irregular inner or outer longitudinal profile, e.g. stepped or grooved
- B65H 2301/414328 different torques on both ends of core
- B65H 2301/414329 blowing gas into winding gap
Top Applicants
Top 10 applicants by patent filingsfor class B65, 2013–2023, worldwide · Source: EPO PATSTAT
- P&G (PROCTER & GAMBLE COMPANY) US 3,369
- KRONES DE 3,304
- TETRA LAVAL HOLDINGS & FINANCE CH 2,227
- CANON JP 2,051
- AUTOSTORE TECHNOLOGY NO 1,731
- GPI (GRAPHIC PACKAGING INTERNATIONAL) US 1,707
- CANON 1,693
- G.D IT 1,678
- MURATA MACHINERY JP 1,664
- DAIFUKU COMPANY JP 1,654