G02B 6/02252
Negative dispersion fibres at 1550 nm
Official title: {Negative dispersion fibres at 1550 nm}
G02B6/02252 (Negative dispersion fibres at 1550 nm) appears on 306 US grants and 264 published applications in this corpus.
Search patents in G02B- Granted patents
- 306
- Published applications
- 264
- Assignees
- 65
- Inventors
- 427
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 2 | 0 |
| 2001 | 11 | 14 |
| 2002 | 35 | 57 |
| 2003 | 48 | 60 |
| 2004 | 46 | 39 |
| 2005 | 37 | 20 |
| 2006 | 23 | 14 |
| 2007 | 21 | 9 |
| 2008 | 9 | 8 |
| 2009 | 8 | 7 |
| 2010 | 8 | 5 |
| 2011 | 6 | 1 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 3 |
| 2015 | 3 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 5 |
| 2018 | 3 | 1 |
| 2019 | 3 | 5 |
| 2020 | 2 | 1 |
| 2021 | 0 | 3 |
| 2022 | 2 | 2 |
| 2023 | 2 | 3 |
| 2024 | 4 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dispersion compensation micro-structured optical fiber19 May 2026US 12,631,818 B2Yanshan University
- Polarization-maintaining dispersion-compensation microstructure fiber21 Oct 2025US 12,449,592 B2Yanshan University
- Broadband optical coupling using dispersive elements15 Oct 2024US 12,117,650 B2Cisco Technology, Inc.
- Single-core polarization-maintaining dispersion compensation micro-structured optical fiber8 Oct 2024US 12,111,491 B2Yanshan University
- Diffraction grating return mirror for wide field of view line of sight jitter sensing16 Jul 2024US 12,038,609 B2Raytheon Company
- Delay-line quantum memory18 Dec 2025US 2025/0383505 A1
- Dispersion compensation micro-structured optical fiber25 Apr 2024US 2024/0134114 A1Yanshan University
- Single-core polarization-maintaining dispersion compensation micro-structured optical fiber18 Jan 2024US 2024/0019631 A1Yanshan University
- Broadband optical coupling using dispersive elements30 Nov 2023US 2023/0384522 A1Cisco Technology, Inc.
- Polarization-maintaining dispersion-compensation microstructure fiber29 Jun 2023US 2023/0204855 A1Yanshan University
Most cited
By later US patents
- Article comprising a micro-structured optical fiber, and method of making such fiber283US 5,802,236 ALucent Technologies Inc. · 1998
- Ultra high numerical aperture optical fibers242US 7,715,672 B2Imra America, Inc. · 2010
- Dispersion compensating devices and systems193US 5,361,319 ACorning Incorporated · 1994
- Optical fiber comprising a refractive index trench131US 4,852,968 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1989
- Article comprising a dispersion-compensating optical waveguide90US 5,448,674 AAT&T Corp. · 1995