Filings by year

C04B 2237/401: granted patents and published applications per publication year
YearGranted patentsPublished applications
197630
197700
197830
197910
198010
198120
198220
198320
198420
198530
198630
198730
198820
198970
199090
199150
199220
199320
199430
199520
199690
199720
199840
199940
200040
200150
200278
200360
200411
200504
200610
200702
200814
200903
201022
201186
201227
2013211
2014913
2015910
20161015
201789
201876
2019612
202072
202146
202235
202365
202429
202564
202631

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

Recent patents

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By later US patents