G02B 5/226
Glass filters
Official title: {Glass filters}
G02B5/226 (Glass filters) appears on 122 US grants and 141 published applications in this corpus.
Search patents in G02B- Granted patents
- 122
- Published applications
- 141
- Assignees
- 84
- Inventors
- 307
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 5 |
| 2003 | 3 | 3 |
| 2004 | 1 | 4 |
| 2005 | 2 | 1 |
| 2006 | 3 | 3 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 3 |
| 2013 | 2 | 6 |
| 2014 | 2 | 5 |
| 2015 | 2 | 5 |
| 2016 | 3 | 7 |
| 2017 | 6 | 13 |
| 2018 | 6 | 11 |
| 2019 | 14 | 8 |
| 2020 | 10 | 9 |
| 2021 | 6 | 8 |
| 2022 | 4 | 11 |
| 2023 | 9 | 9 |
| 2024 | 4 | 7 |
| 2025 | 10 | 13 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical filter1 Sep 2026US 12,724,184 B2AGC Inc.
- Retroreflection defeat filter28 Jul 2026US 12,693,461 B2Qioptiq Limited
- Imaging lens, camera module and electronic device21 Apr 2026US 12,607,791 B2Largan Precision Co., Ltd.
- Optical filter glass ceramic and optical filter3 Mar 2026US 12,565,445 B2Kabushiki Kaisha Ohara
- Optical filter and imaging apparatus10 Feb 2026US 12,546,924 B2Hoya Corporation
- Optical filter4 Jun 2026US 2026/0153659 A1AGC Inc.
- Optical filter and imaging apparatus7 May 2026US 2026/0126573 A1Hoya Corporation
- Fluorophosphate glass, near-infrared cut filter, and optical device12 Mar 2026US 2026/0070836 A1AGC Inc.
- Optical lens assembly and electronic device11 Dec 2025US 2025/0377522 A1Largan Precision Co., Ltd.
- Optical filter4 Dec 2025US 2025/0370177 A1AGC Inc.
Most cited
By later US patents
- Optical filter43US 4,659,178 AMinolta Camera Kabushiki Kaisha · 1987
- Chemically stabilized light selective element for imaging applications43US 6,163,026 AIntel Corporation · 2000
- Neutral bronze glazings32US 4,101,705 ASaint-Gobain Industries · 1978
- Near infrared absorption filter for color television cameras32US 4,303,298 AHoya Corporation · 1981
- Optical filter structure26US 5,249,076 ADainippon Plastics Co., Ltd. · 1993