Filings by year

E04H 7/28: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197820
197900
198000
198100
198220
198310
198420
198510
198600
198710
198810
198930
199000
199100
199230
199310
199400
199510
199610
199710
199810
199910
200000
200100
200200
200300
200401
200510
200600
200700
200800
200900
201000
201103
201200
201301
201410
201511
201601
201720
201800
201901
202001

By publication year. Applications have been published since 2001.