B63B 34/21

Characterised by constructional features

Official title: characterised by constructional features

B63B34/21 (Characterised by constructional features) appears on 212 US grants and 195 published applications in this corpus.

Search patents in B63B
Granted patents
212
Published applications
195
Assignees
79
Inventors
318
Latest grant
19 May 2026

Filings by year

B63B 34/21: granted patents and published applications per publication year
YearGranted patentsPublished applications
197720
197800
197900
198010
198120
198200
198300
198410
198510
198630
198740
198830
198950
199020
199100
199210
199310
199440
199500
199640
199720
199810
199960
200040
200152
200232
200314
200474
200576
200678
200723
200848
200916
201047
201144
201265
201324
201456
2015310
201666
2017157
2018513
2019138
2020811
2021615
2022914
20231113
20241515
2025118
202656

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

Subgroups

Granted patents