Filings by year

C04B 35/63452: granted patents and published applications per publication year
YearGranted patentsPublished applications
197620
197710
197800
197910
198020
198110
198210
198300
198410
198520
198620
198700
198800
198900
199020
199110
199280
199310
199420
199520
199610
199720
199810
199910
200000
200120
200224
200314
200443
200513
200612
200713
200801
200923
201029
201125
201217
201379
201433
201535
201642
201743
201824
201929
202045
202157
202245
202373
202406
202544
202613

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

Recent patents

Most cited

By later US patents