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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

  1. P&G (PROCTER & GAMBLE COMPANY) US 3,369
  2. KRONES DE 3,304
  3. TETRA LAVAL HOLDINGS & FINANCE CH 2,227
  4. CANON JP 2,051
  5. AUTOSTORE TECHNOLOGY NO 1,731
  6. GPI (GRAPHIC PACKAGING INTERNATIONAL) US 1,707
  7. CANON 1,693
  8. G.D IT 1,678
  9. MURATA MACHINERY JP 1,664
  10. DAIFUKU COMPANY JP 1,654