Filings by year

G04D 7/1214: granted patents and published applications per publication year
YearGranted patentsPublished applications
197660
197740
197860
197920
198020
198100
198210
198310
198400
198500
198600
198700
198800
198900
199000
199100
199200
199300
199410
199500
199600
199700
199800
199900
200010
200100
200200
200300
200400
200500
200600
200700
200800
200900
201000
201100
201200
201300
201403
201504
201620
201710
201813
201911
202020
202112
202210
202300
202412
202503
202611

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

Subgroups

Granted patents

Recent patents

Most cited

By later US patents