G02B 27/021

Reading apparatus

Official title: {Reading apparatus}

G02B27/021 (Reading apparatus) appears on 66 US grants and 54 published applications in this corpus.

Search patents in G02B
Granted patents
66
Published applications
54
Assignees
35
Inventors
113
Latest grant
6 Oct 2026

Filings by year

G02B 27/021: granted patents and published applications per publication year
YearGranted patentsPublished applications
197820
197910
198000
198100
198200
198300
198400
198510
198600
198700
198800
198900
199000
199100
199220
199310
199400
199520
199610
199720
199800
199910
200010
200127
200271
200312
200422
200531
200610
200722
200821
200914
201020
201120
201214
201321
201403
201516
201622
201752
201831
201904
202043
202120
202222
202320
202400
202502
202634

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