Filings by year

E04B 5/261: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197900
198020
198100
198200
198300
198400
198500
198610
198710
198820
198910
199010
199100
199200
199300
199410
199500
199600
199710
199800
199920
200020
200100
200200
200300
200403
200502
200610
200710
200800
200902
201012
201124
201212
201323
201452
201511
201602
201742
201832
201916
202032
202113
202222
202301
202410
202522
202602

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

Subgroups

Granted patents

Recent patents

Most cited

By later US patents