Filings by year

E04H 6/182: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197810
197900
198000
198100
198200
198310
198400
198500
198600
198700
198810
198900
199030
199130
199220
199310
199440
199500
199600
199700
199800
199910
200000
200100
200200
200301
200402
200500
200600
200702
200803
200902
201026
201112
201200
201325
201422
201530
201621
201721
201803
201912
202012
202153
202222
202311
202410
202510

By publication year. Applications have been published since 2001.

Subgroups

Granted patents

Recent patents

Most cited

By later US patents