G02B 6/02219
Characterised by the wavelength dispersion properties in the silica low loss window
Official title: {Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm}
G02B6/02219 (Characterised by the wavelength dispersion properties in the silica low loss window) appears on 730 US grants and 595 published applications in this corpus.
Search patents in G02B- Granted patents
- 730
- Published applications
- 595
- Assignees
- 125
- Inventors
- 807
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 8 | 0 |
| 1997 | 11 | 0 |
| 1998 | 20 | 0 |
| 1999 | 16 | 0 |
| 2000 | 13 | 0 |
| 2001 | 30 | 31 |
| 2002 | 71 | 87 |
| 2003 | 86 | 100 |
| 2004 | 79 | 78 |
| 2005 | 72 | 44 |
| 2006 | 54 | 34 |
| 2007 | 41 | 28 |
| 2008 | 27 | 20 |
| 2009 | 24 | 18 |
| 2010 | 19 | 19 |
| 2011 | 19 | 16 |
| 2012 | 10 | 8 |
| 2013 | 11 | 11 |
| 2014 | 12 | 7 |
| 2015 | 8 | 9 |
| 2016 | 6 | 4 |
| 2017 | 7 | 12 |
| 2018 | 11 | 13 |
| 2019 | 8 | 11 |
| 2020 | 10 | 10 |
| 2021 | 6 | 9 |
| 2022 | 9 | 10 |
| 2023 | 8 | 4 |
| 2024 | 6 | 7 |
| 2025 | 3 | 5 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02B 6/02252Negative dispersion fibres at 1550 nm306
- G02B 6/02266Positive dispersion fibres at 1550 nm296
- G02B 6/02228Dispersion flattened fibres, i.e. having a low dispersion variation over an extended283
- G02B 6/02247Dispersion varying along the longitudinal direction58
- G02B 6/02276Dispersion shifted fibres, i.e. zero dispersion at 1550 nm53
- G02B 6/02223Dual window fibres, i.e. characterised by dispersion properties around 1550 nm and27
Recent patents
- Comb-based wavelength division multiplexing21 Jul 2026US 12,689,458 B2Nokia Solutions and Networks Oy
- Optical fiber with a large effective area9 Jun 2026US 12,650,554 B2
- Dispersion compensation micro-structured optical fiber19 May 2026US 12,631,818 B2Yanshan University
- Optical fiber preform24 Mar 2026US 12,583,782 B2Shin-Etsu Chemical Co., Ltd.
- Polarization-maintaining dispersion-compensation microstructure fiber21 Oct 2025US 12,449,592 B2Yanshan University
- Delay-line quantum memory18 Dec 2025US 2025/0383505 A1
- Waveguides Incorporating Transmissive and Reflective Gratings and Related Methods of Manufacturing6 Nov 2025US 2025/0341679 A1DigiLens Inc.
- Comb-based wavelength division multiplexing25 Sep 2025US 2025/0300754 A1Nokia Solutions and Networks Oy
- Single mode optical fiber3 Jul 2025US 2025/0216597 A1Shin-Etsu Chemical Co., Ltd.
- Optical communication system and first node9 Jan 2025US 2025/0015893 A1
Most cited
By later US patents
- Super-large-effective-area (SLA) optical fiber and communication system incorporating the same290US 6,904,218 B2Fitel USA Corp. · 2005
- Article comprising a micro-structured optical fiber, and method of making such fiber283US 5,802,236 ALucent Technologies Inc. · 1998
- Bend-insensitive single-mode optical fiber252US 8,131,125 B2Draka Comteq B.V. · 2012
- Ultra high numerical aperture optical fibers242US 7,715,672 B2Imra America, Inc. · 2010
- Large effective area low attenuation optical fiber241US 8,218,929 B2Corning Incorporated · 2012