G02B 6/02338
Structured core
Official title: {Structured core, e.g. core contains more than one material, non-constant refractive index distribution in core, asymmetric or non-circular elements in core unit, multiple cores, insertions between core and clad}
G02B6/02338 (Structured core) appears on 215 US grants and 244 published applications in this corpus.
Search patents in G02B- Granted patents
- 215
- Published applications
- 244
- Assignees
- 130
- Inventors
- 476
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 2 |
| 2002 | 5 | 13 |
| 2003 | 10 | 3 |
| 2004 | 5 | 12 |
| 2005 | 8 | 25 |
| 2006 | 10 | 12 |
| 2007 | 14 | 5 |
| 2008 | 7 | 7 |
| 2009 | 10 | 14 |
| 2010 | 8 | 11 |
| 2011 | 12 | 2 |
| 2012 | 4 | 7 |
| 2013 | 6 | 10 |
| 2014 | 10 | 12 |
| 2015 | 11 | 7 |
| 2016 | 7 | 10 |
| 2017 | 10 | 11 |
| 2018 | 6 | 8 |
| 2019 | 11 | 12 |
| 2020 | 12 | 16 |
| 2021 | 10 | 4 |
| 2022 | 8 | 9 |
| 2023 | 10 | 9 |
| 2024 | 6 | 9 |
| 2025 | 4 | 6 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hollow core optical fiber and a laser system28 Jul 2026US 12,693,470 B2Nkt Photonics A/S
- Architecture for electromagnetic waveguide26 May 2026US 12,638,634 B2Centre National De La Recherche Scientifique
- Multi-clad optical fibers7 Apr 2026US 12,596,224 B2
- Amplifying optical fibers17 Mar 2026US 12,580,359 B2Corning Incorporated
- Microstructured optical fiber and preform for same having specific oxygen deficiency center and chlorine concentrations24 Feb 2026US 12,560,755 B2Heraeus Quarzglas GmbH & Co.KG
- Multicore fiber24 Sep 2026US 2026/0287811 A1Lightera Japan Co., Ltd.
- Anti-resonant hollow core fiber17 Sep 2026US 2026/0276882 A1Heraeus Quarzglas GmbH & Co.KG
- Hollow-core fibers featuring anti-resonant elements with engineered node thickness9 Jul 2026US 2026/0194705 A1Relativity Networks, Inc.
- Multilayer structure having a melt extruded water absorbing polyolefin layer9 Apr 2026US 2026/0098995 A1PolyChem Alloy, Inc.
- Hollow-core fiber and optical transmission system5 Mar 2026US 2026/0063834 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- Multicore optical fibre354US 6,301,420 B1The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 2001
- Article comprising a micro-structured optical fiber, and method of making such fiber283US 5,802,236 ALucent Technologies Inc. · 1998
- Nonlinear optical fibre method of its production and use thereof234US 7,266,275 B2Crystal Fibre A/S · 2007
- Large core area single mode optical fiber226US 8,903,214 B2Nkt Photonics A/S · 2014
- Photonic crystal fiber141US 6,243,522 B1Corning Incorporated · 2001