Filings by year

F04B 7/0011: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197910
198000
198110
198210
198300
198400
198500
198600
198700
198800
198900
199000
199100
199210
199300
199410
199500
199600
199710
199800
199900
200000
200110
200200
200300
200411
200500
200600
200700
200800
200901
201000
201102
201200
201300
201411
201500
201601
201710
201801
201900
202012
202100
202210
202301
202410

By publication year. Applications have been published since 2001.