B60B 21/04

With substantially radial flanges

Official title: with substantially radial flanges (with rail-engaging flanges B60B17/00 ){(B60B21/021 takes precedence)}

B60B21/04 (With substantially radial flanges) appears on 185 US grants and 226 published applications in this corpus.

Search patents in B60B
Granted patents
185
Published applications
226
Assignees
91
Inventors
289
Latest grant
25 Nov 2025

Filings by year

B60B 21/04: granted patents and published applications per publication year
YearGranted patentsPublished applications
198120
198200
198300
198400
198500
198600
198700
198800
198900
199000
199100
199200
199310
199400
199510
199600
199710
199820
199920
200050
2001103
2002208
2003911
20041419
2005621
20061015
2007818
20081421
2009512
2010213
20111211
201248
201352
201497
201555
201638
201787
2018115
201913
2020410
202113
202233
202325
202432
202524
202602

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