Filings by year

F02M 15/04: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197810
197900
198010
198100
198200
198310
198400
198500
198600
198700
198810
198900
199000
199100
199200
199310
199410
199500
199600
199700
199800
199900
200000
200100
200210
200301
200411
200500
200601
200700
200812
200900
201010
201100
201202
201300
201420
201500
201601
201710
201800
201901
202000
202111
202200
202300
202400
202501

By publication year. Applications have been published since 2001.

Subgroups

Granted patents

Recent patents

Most cited

By later US patents