G02B 13/20

Soft-focus objectives

G02B13/20 (Soft-focus objectives) appears on 45 US grants and 27 published applications in this corpus.

Search patents in G02B
Granted patents
45
Published applications
27
Assignees
26
Inventors
80
Latest grant
3 Oct 2023

Filings by year

G02B 13/20: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197810
197900
198010
198110
198220
198300
198420
198510
198610
198700
198800
198930
199030
199100
199200
199310
199400
199500
199600
199700
199830
199900
200000
200110
200200
200311
200411
200501
200610
200700
200801
200902
201024
201100
201211
201331
201410
201500
201601
201711
201806
201931
202031
202112
202212
202350
202400
202501

By publication year. Applications have been published since 2001.

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By later US patents