B65H 51/02

Rotary devices

Official title: 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)

B65H51/02 (Rotary devices) appears on 346 US grants and 282 published applications in this corpus.

Search patents in B65H
Granted patents
346
Published applications
282
Assignees
266
Inventors
718
Latest grant
25 Aug 2026

Filings by year

B65H 51/02: granted patents and published applications per publication year
YearGranted patentsPublished applications
197690
1977110
197820
197930
198040
198170
198250
198330
198470
198530
198660
198740
198830
198940
199050
199130
199250
199340
199440
199510
199660
199730
199830
1999110
200050
200163
200245
200333
200431
200515
200604
200725
200844
200935
201038
201188
201225
2013614
2014917
20151017
2016109
20171619
20181213
20192028
20201818
20211313
2022718
20231715
20241920
20251713
20261212

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Subgroups

Granted patents