Filings by year

D01H 4/12: granted patents and published applications per publication year
YearGranted patentsPublished applications
197690
197760
1978120
197950
198060
198160
198210
198340
198410
198540
198630
198790
198860
198920
1990100
199120
199240
199380
199420
199560
199690
199770
199890
1999160
2000100
200170
2002413
200376
200463
200521
200610
200716
200832
200912
201031
201120
201200
201301
201413
201513
201600
201733
201822
201923
202012
202120
202210
202304
202410

By publication year. Applications have been published since 2001.

Subgroups

Granted patents

Recent patents

Most cited

By later US patents