G02B 5/28
Interference filters
G02B5/28 (Interference filters) appears on 2,954 US grants and 3,507 published applications in this corpus.
Search patents in G02B- Granted patents
- 2,954
- Published applications
- 3,507
- Assignees
- 1,235
- Inventors
- 6,201
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 7 | 0 |
| 1980 | 10 | 0 |
| 1981 | 7 | 0 |
| 1982 | 8 | 0 |
| 1983 | 8 | 0 |
| 1984 | 7 | 0 |
| 1985 | 11 | 0 |
| 1986 | 6 | 0 |
| 1987 | 15 | 0 |
| 1988 | 12 | 0 |
| 1989 | 16 | 0 |
| 1990 | 24 | 0 |
| 1991 | 25 | 0 |
| 1992 | 29 | 0 |
| 1993 | 41 | 0 |
| 1994 | 25 | 0 |
| 1995 | 29 | 0 |
| 1996 | 29 | 0 |
| 1997 | 24 | 0 |
| 1998 | 25 | 0 |
| 1999 | 25 | 0 |
| 2000 | 31 | 0 |
| 2001 | 27 | 9 |
| 2002 | 32 | 50 |
| 2003 | 43 | 71 |
| 2004 | 49 | 79 |
| 2005 | 44 | 68 |
| 2006 | 47 | 77 |
| 2007 | 50 | 82 |
| 2008 | 51 | 100 |
| 2009 | 41 | 88 |
| 2010 | 58 | 75 |
| 2011 | 53 | 90 |
| 2012 | 56 | 83 |
| 2013 | 48 | 106 |
| 2014 | 63 | 139 |
| 2015 | 69 | 153 |
| 2016 | 117 | 181 |
| 2017 | 138 | 174 |
| 2018 | 130 | 188 |
| 2019 | 178 | 271 |
| 2020 | 205 | 239 |
| 2021 | 190 | 288 |
| 2022 | 170 | 220 |
| 2023 | 172 | 209 |
| 2024 | 186 | 190 |
| 2025 | 201 | 173 |
| 2026 | 114 | 104 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optical filters with hydrogenated silicon carbide and systems and methods of making the same29 Sep 2026US 12,748,248 B2Fuzhou Photop Optics Co., Ltd.
- Circadian rhythm restoring blue blockers22 Sep 2026US 12,742,980 B2Arizona Board of Regents on Behalf of the University of Arizona
- Narrowband absorbing and reflecting optical filters15 Sep 2026US 12,736,727 B1
- Three-layered structural color multilayer structures15 Sep 2026US 12,736,728 B2Toyota Jidosha Kabushiki Kaisha
- Colored blue blockers15 Sep 2026US 12,736,837 B2Arizona Board of Regents on Behalf of the University of Arizona
- Image distortion prevention filter and manufacturing method thereof1 Oct 2026US 2026/0299178 A1Vault Creation Co., Ltd.
- Optical apparatus including multilayered optical film structure and method and apparatus for planarizing the multilayered optical film structure1 Oct 2026US 2026/0299179 A1Samsung Electronics Co., Ltd.
- Spectral filter, and image sensor and electronic device including the spectral filter24 Sep 2026US 2026/0287806 A1Samsung Electronics Co., Ltd.
- Optical filter, display device including the optical filter, and electronic device including the same17 Sep 2026US 2026/0276875 A1Samsung Display Co., Ltd.
- Optical filter and optical system10 Sep 2026US 2026/0267048 A13M Innovative Properties Company
Most cited
By later US patents
- Optical filter for spectroscopic measurement and method of producing the optical filter1,209US 5,760,910 AMasimo Corporation · 1998
- Optical filter for spectroscopic measurement and method of producing the optical filter1,055US 5,940,182 AMasimo Corporation · 1999
- Optical filter for spectroscopic measurement and method of producing the optical filter1,032US 6,278,522 B1Masimo Laboratories, Inc. · 2001
- Device having a light-absorbing mask and a method for fabricating same610US 6,741,377 B2Iridigm Display Corporation · 2004
- Electrocrystallochromic display and element376US 4,982,184 AGeneral Electric Company · 1991