Filings by year

H01J 9/221: granted patents and published applications per publication year
YearGranted patentsPublished applications
197650
197750
197840
197920
198050
198130
198250
198340
198410
198530
198620
198710
198820
198920
199070
199160
199290
199330
1994110
1995110
199630
199790
1998140
1999140
200060
200172
200211
200314
200424
200564
200636
200736
200825
200914
201036
201145
201224
201312
201411
201511
201630
201731
201800
201900
202010

By publication year. Applications have been published since 2001.

Subgroups

Granted patents

Recent patents

Most cited

By later US patents