Filings by year

F02M 67/12: granted patents and published applications per publication year
YearGranted patentsPublished applications
198210
198300
198400
198510
198610
198720
198840
1989100
1990100
1991120
1992140
199360
199410
199550
199610
199700
199840
199940
200020
200140
200232
200352
200416
200563
200620
200720
200803
200912
201000
201100
201202
201301
201425
201503
201621
201731
201823
201945
202042
202120
202200
202310
202400
202512

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents