Filings by year

B21D 31/046: granted patents and published applications per publication year
YearGranted patentsPublished applications
197820
197910
198000
198140
198210
198310
198420
198510
198620
198700
198800
198900
199010
199110
199250
199330
199420
199520
199650
199720
199860
199910
200060
200124
200241
200323
200424
200552
200610
200702
200813
200910
201000
201110
201200
201310
201400
201502
201610
201710
201800
201900
202000
202101
202200
202310

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents