Filings by year

C04B 2237/402: granted patents and published applications per publication year
YearGranted patentsPublished applications
197640
197720
197830
197900
198000
198110
198210
198310
198400
198520
198640
198730
198810
198950
199040
199160
199260
199340
199420
199510
199640
199720
199820
199980
200080
200153
200269
2003109
2004716
200568
200663
200736
200863
200935
201037
201148
2012414
2013311
2014719
20151218
20161424
20171921
20181417
2019146
20201516
20211315
2022823
20231216
20241510
20251617
202659

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

Recent patents

Most cited

By later US patents