Filings by year

C21D 1/48: granted patents and published applications per publication year
YearGranted patentsPublished applications
197810
197920
198000
198100
198210
198310
198400
198500
198600
198710
198800
198910
199020
199100
199200
199310
199400
199500
199600
199700
199810
199900
200000
200101
200210
200310
200401
200500
200600
200700
200800
200902
201000
201100
201200
201300
201400
201501
201611
201710
201801
201900
202010
202101
202201
202301
202413

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents