Filings by year

F01C 1/023: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197700
197800
197900
198010
198100
198200
198300
198400
198520
198610
198700
198800
198900
199030
199110
199250
199320
199430
199500
199600
199700
199800
199900
200010
200100
200200
200300
200400
200500
200600
200700
200800
200900
201000
201100
201200
201303
201400
201510
201621
201700
201810
201900
202002
202100
202201

By publication year. Applications have been published since 2001.

Subgroups

Granted patents