Filings by year

E01C 23/24: granted patents and published applications per publication year
YearGranted patentsPublished applications
197630
197700
197800
197900
198000
198110
198210
198310
198400
198500
198620
198700
198800
198910
199000
199100
199200
199300
199400
199510
199610
199710
199810
199910
200010
200132
200201
200300
200401
200501
200611
200700
200802
200911
201002
201112
201213
201313
201441
201501
201620
201712
201801
201921
202001
202111
202221
202311
202401
202500
202611

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

Subgroups

Granted patents