Filings by year

D06P 1/924: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976140
197780
197840
197920
198000
198110
198200
198300
198410
198510
198600
198700
198800
198900
199000
199100
199210
199310
199410
199500
199600
199710
199800
199900
200000
200100
200200
200331
200412
200522
200600
200700
200810

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents