G03B 9/40

Double plate

G03B9/40 (Double plate) appears on 247 US grants and 186 published applications in this corpus.

Search patents in G03B
Granted patents
247
Published applications
186
Assignees
48
Inventors
272
Latest grant
23 Dec 2025

Filings by year

G03B 9/40: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976140
1977120
1978100
197970
198060
198140
198240
198320
198400
198570
198610
198710
198800
198930
199010
199100
199200
199310
199400
199500
199610
199710
199850
199910
200010
200102
200242
200313
200468
200502
200612
200732
200876
200934
201063
201146
2012315
201392
20141215
2015718
20161910
2017138
2018516
20191110
20201416
202186
202268
2023412
202481
2025119

By publication year. Applications have been published since 2001.

Subgroups

Granted patents