Filings by year

G09B 9/063: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197900
198010
198100
198230
198320
198400
198500
198600
198700
198810
198900
199000
199100
199200
199310
199430
199510
199600
199720
199810
199910
200020
200111
200211
200301
200410
200500
200601
200710
200800
200900
201000
201100
201200
201310
201400
201503
201622
201712
201814
201958
202045
202133
202232
202322
202442
202522
202601

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

Recent patents

Most cited

By later US patents