Filings by year

C11D 17/0021: granted patents and published applications per publication year
YearGranted patentsPublished applications
197910
198000
198110
198200
198310
198410
198550
198620
198730
198800
198950
199050
1991100
1992100
199370
199460
1995150
1996240
1997180
1998340
1999370
2000280
2001215
2002167
2003157
2004711
2005410
200654
2007212
2008411
200936
20101013
201146
201279
201359
20141212
2015118
201666
201724
201823
201938
202028
2021512
202258
202384
202459
202556
202623

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Recent patents

Most cited

By later US patents