Filings by year

C04B 2235/3826: granted patents and published applications per publication year
YearGranted patentsPublished applications
197740
197860
197940
198070
198130
198240
198340
198460
198540
198630
198730
198860
1989110
1990100
1991190
1992100
1993200
1994190
1995150
1996170
1997130
1998160
1999250
200070
2001145
20021130
20033148
20043061
20052863
20063577
20073053
20083754
20093177
20104351
20114059
20124254
20134461
20143663
20154148
20164868
20175276
20185179
20195382
20207095
20216386
20225370
20236996
20247583
20256084
20264949

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

Subgroups

Granted patents

Recent patents

Most cited

By later US patents