Filings by year

G02B 7/305: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197750
197890
1979150
198060
1981100
198250
198360
198400
198510
198610
198710
198810
198910
199010
199110
199210
199300
199400
199500
199600
199710
199800
199900
200000
200100
200200
200300
200400
200500
200600
200700
200800
200900
201000
201101
201200
201310
201400
201500
201600
201701
201801
201910
202010

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents