Filings by year

D06P 1/922: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976160
197780
197870
197920
198010
198110
198210
198300
198410
198510
198600
198710
198830
198920
199010
199110
199240
199310
199430
199500
199610
199710
199800
199900
200010
200100
200200
200332
200412
200532
200600
200700
200810
200900
201000
201100
201200
201300
201400
201500
201600
201700
201800
201900
202003
202100
202201
202310
202410
202501

By publication year. Applications have been published since 2001.

Subgroups

Granted patents

Recent patents

Most cited

By later US patents