Filings by year

G03B 17/52: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976270
1977230
1978380
1979180
1980180
1981190
198290
198330
198480
1985120
198690
1987100
1988120
1989120
199090
199180
199260
199350
199430
199530
199660
199740
199870
199990
200050
200183
200264
200342
200432
200533
200622
200730
200800
200910
201000
201100
201200
201300
201400
201500
201600
201701
201813
201903
202063
202123
202222
202324
202425
202551
202610

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