CPC Subgroup
B65H 51/02 Rotary devices, e.g. with helical forwarding surfaces (devices for temporarily storing filamentary material during forwarding B65H51/20; driven rotary devices for controlling tension B65H59/18)
Full Title
Forwarding filamentary material (stretch-spinning methods D01D5/12; drawing or drafting rovings or the like D01H5/00) > Rotary devices, e.g. with helical forwarding surfaces (devices for temporarily storing filamentary material during forwarding B65H51/20; driven rotary devices for controlling tension B65H59/18)
1 direct subcode
Child Classifications
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- B65H 51/04 Rollers, pulleys, capstans, or intermeshing rotary elements
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