Filings by year

F22B 31/0038: granted patents and published applications per publication year
YearGranted patentsPublished applications
197810
197950
198040
198140
198210
198300
198440
198520
198610
198760
198820
198900
199000
199110
199220
199320
199410
199500
199600
199700
199800
199910
200000
200120
200200
200300
200400
200500
200601
200700
200810
200900
201000
201101
201201
201300
201412
201520
201601
201700
201811
201920

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents