Filings by year

F01C 20/26: granted patents and published applications per publication year
YearGranted patentsPublished applications
197810
197900
198000
198100
198200
198300
198400
198510
198600
198700
198800
198910
199010
199100
199210
199300
199410
199500
199600
199700
199810
199900
200000
200100
200200
200300
200400
200500
200601
200701
200812
200910
201010
201111
201204
201300
201421
201535
201611
201713
201811
201911
202020
202100
202201
202310

By publication year. Applications have been published since 2001.

Subgroups

Granted patents

Recent patents

Most cited

By later US patents