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CPC Subgroup Additional Only
B65H 2301/4181

Core or mandrel supply

Full Title

Handling processes for sheets or webs > Type of handling process > Winding, unwinding > Handling or changing web rolls > Changing web roll > Core or mandrel supply

4 direct subcodes

Child Classifications

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  • B65H 2301/41812 by conveyor belt or chain running in closed loop
  • B65H 2301/41814 by container storing cores and feeding through wedge-shaped slot or elongated channel
  • B65H 2301/41816 by core magazine within winding machine, i.e. horizontal or inclined ramp holding cores
  • B65H 2301/41818 mandrels circulating (cycling) in machine or system

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