G02B 17/02
Catoptric systems
Official title: Catoptric systems, e.g. image erecting and reversing system
G02B17/02 (Catoptric systems) appears on 1,619 US grants and 1,432 published applications in this corpus.
Search patents in G02B- Granted patents
- 1,619
- Published applications
- 1,432
- Assignees
- 681
- Inventors
- 2,659
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 7 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 10 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 11 | 0 |
| 1988 | 20 | 0 |
| 1989 | 21 | 0 |
| 1990 | 23 | 0 |
| 1991 | 17 | 0 |
| 1992 | 23 | 0 |
| 1993 | 16 | 0 |
| 1994 | 14 | 0 |
| 1995 | 17 | 0 |
| 1996 | 14 | 0 |
| 1997 | 10 | 0 |
| 1998 | 25 | 0 |
| 1999 | 20 | 0 |
| 2000 | 24 | 0 |
| 2001 | 30 | 5 |
| 2002 | 23 | 28 |
| 2003 | 29 | 44 |
| 2004 | 32 | 52 |
| 2005 | 41 | 66 |
| 2006 | 49 | 62 |
| 2007 | 42 | 53 |
| 2008 | 52 | 44 |
| 2009 | 39 | 42 |
| 2010 | 24 | 56 |
| 2011 | 35 | 41 |
| 2012 | 41 | 52 |
| 2013 | 37 | 46 |
| 2014 | 42 | 59 |
| 2015 | 57 | 63 |
| 2016 | 70 | 66 |
| 2017 | 65 | 67 |
| 2018 | 59 | 82 |
| 2019 | 97 | 90 |
| 2020 | 76 | 81 |
| 2021 | 73 | 75 |
| 2022 | 56 | 76 |
| 2023 | 62 | 53 |
| 2024 | 62 | 64 |
| 2025 | 45 | 34 |
| 2026 | 41 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Imaging optical system comprising three mirrors29 Sep 2026US 12,748,290 B2Office National D’Etudes Et De Recherches AéRospatiales
- Projector with field lens25 Aug 2026US 12,720,020 B2Snap Inc.
- Multiple effective focal length (EFL) optical system18 Aug 2026US 12,710,629 B2
- Widefield catadioptric monolithic telescopes11 Aug 2026US 12,704,708 B2Lawrence Livermore National Security, LLC
- Optical device and prism module thereof14 Jul 2026US 12,681,279 B2Asia Optical Co., Inc.
- Illumination line generation by double-duty diffusion1 Oct 2026US 2026/0299175 A1Cognex Corporation
- Method and apparatus for interaction with an intelligent personal assistant24 Sep 2026US 2026/0292109 A1Universal Electronics Inc.
- Surveying device10 Sep 2026US 2026/0266607 A1Topcon Corporation
- Euv mirror with improved optical stability10 Sep 2026US 2026/0267232 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Light source unit and image display device27 Aug 2026US 2026/0251897 A1Nichia Corporation
Most cited
By later US patents
- Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus256US 6,795,169 B2Nikon Corporation · 2004
- Optical system, and image observing apparatus and image pickup apparatus using it178US 5,706,136 ACanon Kabushiki Kaisha · 1998
- Prism light guide having surfaces which are in octature156US 4,260,220 ACanadian Patents and Development Limited · 1981
- Methods of and apparatus for manipulating electromagnetic phenomenon151US 5,369,511 A1994
- High numerical aperture ring field optical reduction system150US 5,815,310 ASVG Lithography Systems, Inc. · 1998