Filings by year

F02B 1/06: granted patents and published applications per publication year
YearGranted patentsPublished applications
197640
1977150
197890
197900
198020
198100
198200
198320
198400
198500
198600
198700
198800
198910
199000
199100
199200
199300
199400
199500
199600
199700
199800
199900
200000
200100
200201
200310
200400
200500
200600
200701
200811
200900
201001
201110
201200
201310
201400
201500
201602
201711
201832
201904
202031
202111
202222
202331
202400
202501

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents