Filings by year

F01K 3/22: granted patents and published applications per publication year
YearGranted patentsPublished applications
197620
197710
197810
197910
198010
198130
198210
198300
198400
198500
198600
198730
198800
198910
199000
199100
199200
199300
199400
199500
199600
199700
199800
199900
200000
200100
200200
200300
200400
200500
200600
200700
200800
200900
201000
201101
201201
201302
201403
201523
201600
201742
201800
201922
202020
202100
202203
202312
202420
202512
202620

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Recent patents

Most cited

By later US patents