B31B 50/52

By reciprocating or oscillating members

Official title: by reciprocating or oscillating members, e.g. fingers (by plungers moving through folding dies B31B50/44)

B31B50/52 (By reciprocating or oscillating members) appears on 257 US grants and 192 published applications in this corpus.

Search patents in B31B
Granted patents
257
Published applications
192
Assignees
150
Inventors
390
Latest grant
18 Aug 2026

Filings by year

B31B 50/52: granted patents and published applications per publication year
YearGranted patentsPublished applications
197670
197790
197830
197900
198050
198170
198260
198320
198440
198550
198670
198760
198850
198910
199010
199110
199240
199340
199420
199510
199610
199720
199820
199920
200020
200141
200230
200302
200411
200528
200624
200726
200875
200936
201071
201139
201275
201343
2014213
2015311
2016411
20171111
20181411
201989
20201113
20211013
20221511
20231716
20241110
2025117
202665

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

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