G02B 6/29353
With a wavelength selective element in at least one light guide interferometer
Official title: {with a wavelength selective element in at least one light guide interferometer arm, e.g. grating, interference filter, resonator}
G02B6/29353 (With a wavelength selective element in at least one light guide interferometer) appears on 134 US grants and 130 published applications in this corpus.
Search patents in G02B- Granted patents
- 134
- Published applications
- 130
- Assignees
- 105
- Inventors
- 348
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 11 | 0 |
| 2002 | 4 | 10 |
| 2003 | 6 | 11 |
| 2004 | 8 | 9 |
| 2005 | 6 | 7 |
| 2006 | 5 | 6 |
| 2007 | 6 | 2 |
| 2008 | 3 | 1 |
| 2009 | 2 | 7 |
| 2010 | 2 | 3 |
| 2011 | 3 | 2 |
| 2012 | 0 | 6 |
| 2013 | 6 | 2 |
| 2014 | 4 | 3 |
| 2015 | 1 | 3 |
| 2016 | 3 | 3 |
| 2017 | 5 | 4 |
| 2018 | 3 | 5 |
| 2019 | 6 | 10 |
| 2020 | 7 | 4 |
| 2021 | 3 | 2 |
| 2022 | 6 | 6 |
| 2023 | 4 | 8 |
| 2024 | 4 | 4 |
| 2025 | 3 | 7 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Wavelength selective optical devices using optical directional coupler115US 4,900,119 ACanadian Patents and Development Limited · 1990
- Wavelength multiplexed light transfer unit and wavelength multiplexed light transfer system87US 5,850,301 AMitsubishi Denki Kabushiki Kaisha · 1998
- All-pass optical filters79US 6,289,151 B1Lucent Technologies Inc. · 2001
- Reconfigurable add-drop multiplexer for optical communications systems65US 6,035,080 A2000
- Tunable bragg gratings and devices employing the same55US 6,221,565 B1University of New Mexico · 2001