Filings by year

C04B 2237/708: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976120
197730
197850
197920
198040
198150
198240
198340
198440
1985140
1986140
1987140
1988170
1989290
1990170
1991230
1992210
1993200
1994210
1995110
1996120
199740
1998130
1999150
2000190
2001154
20021314
20031411
2004925
20051014
2006714
2007515
2008715
2009613
20101223
2011615
20121331
20131924
20141536
20153030
20162123
20172430
20182422
20192119
20201719
20211514
20221121
20231219
20242012
2025915
20261110

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

Recent patents

Most cited

By later US patents