G02B 6/0283
Graded index region external to the central core segment
Official title: {Graded index region external to the central core segment, e.g. sloping layer or triangular or trapezoidal layer (G02B6/0288, G02B6/0286 take precedence)}
G02B6/0283 (Graded index region external to the central core segment) appears on 131 US grants and 128 published applications in this corpus.
Search patents in G02B- Granted patents
- 131
- Published applications
- 128
- Assignees
- 60
- Inventors
- 290
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 6 | 9 |
| 2003 | 7 | 10 |
| 2004 | 7 | 3 |
| 2005 | 7 | 5 |
| 2006 | 5 | 2 |
| 2007 | 3 | 5 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 3 | 5 |
| 2011 | 3 | 2 |
| 2012 | 3 | 4 |
| 2013 | 3 | 13 |
| 2014 | 5 | 6 |
| 2015 | 12 | 9 |
| 2016 | 8 | 9 |
| 2017 | 7 | 3 |
| 2018 | 7 | 7 |
| 2019 | 5 | 4 |
| 2020 | 3 | 3 |
| 2021 | 5 | 7 |
| 2022 | 6 | 4 |
| 2023 | 5 | 5 |
| 2024 | 2 | 4 |
| 2025 | 2 | 4 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optical fiber14 Jul 2026US 12,679,764 B2Furukawa Electric Co., Ltd.
- Selective numerical aperture cladding light stripper30 Jun 2026US 12,669,642 B2Lumentum Operations LLC
- Optical fiber with inverse triangular trench design17 Mar 2026US 12,578,525 B2Corning Incorporated
- Compliant optical fiber18 Nov 2025US 12,474,522 B2Corning Incorporated
- Gain flattening filter, and method for manufacturing gain flattening filter21 Jan 2025US 12,204,140 B2Sumitomo Electric Industries, Ltd.
- Optical fiber for high density cable10 Sep 2026US 2026/0267059 A1
- Optical fiber5 Mar 2026US 2026/0063837 A1Sumitomo Electric Industries, Ltd.
- Uncoupled multicore optical fiber29 May 2025US 2025/0172746 A1Corning Incorporated
- Optical fibers comprising triangular trench profile27 Mar 2025US 2025/0102731 A1OFS Fitel, LLC
- Optical Fiber and Optical Fiber Ribbon13 Feb 2025US 2025/0052948 A1
Most cited
By later US patents
- Low bend loss optical fiber247US 8,081,854 B2Gwangju Institute of Science and Technology · 2011
- Glass large-core optical fibers241US 8,159,742 B2Imra America, Inc. · 2012
- Low attenuation optical waveguide226US 6,282,354 B1Corning Incorporated · 2001
- Large core area single mode optical fiber226US 8,903,214 B2Nkt Photonics A/S · 2014
- Ytterbium-doped optical fiber, fiber laser and fiber amplifier219US 8,941,912 B2Fujikura Ltd. · 2015