Filings by year

C04B 35/58021: granted patents and published applications per publication year
YearGranted patentsPublished applications
198410
198510
198600
198710
198810
198920
199040
199110
199210
199300
199410
199520
199610
199720
199800
199930
200020
200120
200211
200312
200414
200527
200635
200734
200824
200943
201056
201134
201212
201312
201422
201553
201607
201741
201832
201924
202023
202143
202202
202333
202430
202521

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents