Filings by year

F02P 3/0823: granted patents and published applications per publication year
YearGranted patentsPublished applications
198510
198610
198710
198800
198900
199000
199100
199200
199300
199400
199500
199600
199700
199800
199900
200000
200100
200200
200300
200400
200501
200622
200712
200820
200900
201000
201100
201201
201300
201400
201500
201610
201700
201800
201900
202000
202100
202200
202300
202401
202510

By publication year. Applications have been published since 2001.

Subgroups

Granted patents

Recent patents

Most cited

By later US patents