E04C 3/293

The materials being steel and concrete

Official title: the materials being steel and concrete (concrete with internal reinforcements or tensioning members E04C3/20)

E04C3/293 (The materials being steel and concrete) appears on 165 US grants and 157 published applications in this corpus.

Search patents in E04C
Granted patents
165
Published applications
157
Assignees
132
Inventors
348
Latest grant
3 Feb 2026

Filings by year

E04C 3/293: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197710
197810
197900
198030
198120
198230
198320
198400
198510
198630
198750
198810
198910
199020
199110
199230
199300
199420
199530
199640
199720
199820
199900
200010
200120
200211
200337
200427
200529
2006310
200705
200825
200935
201027
201148
201263
201364
201467
201556
201675
201757
201899
20191010
202097
2021710
2022710
202375
202473
202555
202612

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

Subgroups

Granted patents