Filings by year

C04B 2237/567: granted patents and published applications per publication year
YearGranted patentsPublished applications
197620
197700
197810
197900
198000
198100
198200
198310
198420
198500
198600
198710
198800
198930
199050
199100
199220
199310
199410
199510
199610
199710
199800
199900
200000
200120
200211
200334
200420
200501
200600
200701
200800
200900
201010
201100
201201
201302
201400
201520
201602
201703
201800
201911
202000
202100
202211
202300
202400
202500
202611

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

Recent patents

Most cited

By later US patents