Filings by year

C04B 35/82: granted patents and published applications per publication year
YearGranted patentsPublished applications
197630
197700
197810
197900
198010
198100
198200
198310
198410
198500
198600
198710
198800
198920
199040
199150
199230
199330
199430
199530
199640
199770
199820
199980
200020
200100
2002310
200314
200436
200538
200664
2007210
2008211
2009714
201044
2011812
2012712
201367
20141013
201576
2016617
201766
201846
20191212
2020413
20211014
2022125
202378
2024108
202599
202625

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

Recent patents

Most cited

By later US patents