Filings by year

E04H 9/023: granted patents and published applications per publication year
YearGranted patentsPublished applications
198510
198600
198710
198810
198940
199020
199110
199220
199300
199400
199500
199600
199710
199820
199920
200040
200111
200215
200314
200447
200555
200605
2007211
200844
200932
201042
201124
201267
201353
201415
201542
201633
201704
201863
201922
202035
202188
202243
202341
202402
202513
202610

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

Recent patents

Most cited

By later US patents