G02B 13/18

Optical objectives specially designed for the purposes specified below: with lenses having

Official title: with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration {(G02B13/002 takes precedence)}

G02B13/18 (Optical objectives specially designed for the purposes specified below: with lenses having) appears on 2,926 US grants and 3,240 published applications in this corpus.

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2,926
Published applications
3,240
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497
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2,640
Latest grant
6 Oct 2026

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G02B 13/18: granted patents and published applications per publication year
YearGranted patentsPublished applications
197690
197730
197850
197920
198040
198130
198260
198330
1984120
1985100
1986200
1987190
1988200
1989230
1990170
1991170
1992120
1993140
1994150
1995130
1996170
1997220
1998100
1999100
2000100
200174
2002413
20031926
20042535
20052638
20063631
20072641
20083745
20093647
20105276
20114674
20125696
2013109122
2014135193
2015152207
2016191191
2017162148
2018134192
2019192215
2020177242
2021189287
2022159229
2023168179
2024200184
2025190210
2026102115

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

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