Filings by year

E21F 5/06: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197700
197820
197900
198000
198100
198200
198300
198410
198500
198600
198700
198800
198900
199000
199100
199200
199300
199400
199500
199600
199700
199800
199900
200000
200100
200200
200300
200400
200501
200600
200700
200800
200900
201002
201100
201200
201302
201412
201511
201602
201724
201811
201913
202042
202111
202210
202310
202412
202503

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents