Filings by year

D06P 1/58: granted patents and published applications per publication year
YearGranted patentsPublished applications
197810
197900
198000
198100
198200
198300
198400
198500
198600
198700
198810
198900
199000
199100
199210
199300
199400
199500
199620
199710
199810
199920
200000
200130
200210
200300
200400
200501
200601
200701
200800
200900
201000
201100
201200
201310
201400
201500
201600
201700
201801
201901
202000
202110
202210

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents