G02B 6/03611
Highest index adjacent to central axis region
Official title: {Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding}
G02B6/03611 (Highest index adjacent to central axis region) appears on 390 US grants and 314 published applications in this corpus.
Search patents in G02B- Granted patents
- 390
- Published applications
- 314
- Assignees
- 125
- Inventors
- 627
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 10 | 0 |
| 1998 | 12 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 18 | 10 |
| 2002 | 36 | 28 |
| 2003 | 33 | 38 |
| 2004 | 27 | 32 |
| 2005 | 21 | 17 |
| 2006 | 22 | 15 |
| 2007 | 14 | 13 |
| 2008 | 18 | 14 |
| 2009 | 8 | 6 |
| 2010 | 9 | 4 |
| 2011 | 8 | 6 |
| 2012 | 1 | 8 |
| 2013 | 3 | 6 |
| 2014 | 11 | 9 |
| 2015 | 11 | 18 |
| 2016 | 14 | 5 |
| 2017 | 4 | 8 |
| 2018 | 6 | 17 |
| 2019 | 10 | 14 |
| 2020 | 17 | 9 |
| 2021 | 5 | 9 |
| 2022 | 10 | 8 |
| 2023 | 5 | 6 |
| 2024 | 6 | 6 |
| 2025 | 2 | 5 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Beam intensity profile tailoring with a composite, tapered optical fibre11 Aug 2026US 12,706,431 B2The University of Sydney
- 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
- Multi-core optical fiber and multi-core optical fiber cable15 Jul 2025US 12,360,309 B2Sumitomo Electric Industries, Ltd.
- Image fiber, endoscope having image fiber, and endoscope system having endoscope22 Apr 2025US 12,279,751 B2Fujikura Ltd.
- Optical fiber30 Jul 2026US 2026/0219440 A1Sumitomo Electric Industries, Ltd.
- Strong, fatigue-resistant optical fiber with enhanced side irradiation23 Jul 2026US 2026/0211174 A1
- Few-mode optical fiber12 Feb 2026US 2026/0043959 A1
- Comb-based wavelength division multiplexing25 Sep 2025US 2025/0300754 A1Nokia Solutions and Networks Oy
- Multicore optical fiber, optical combiner, and method of measuring fiber characteristics12 Jun 2025US 2025/0189717 A1Sumitomo Electric Industries, Ltd.
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
- Bend insensitive single mode fiber237US 8,750,664 B2Futong Group Co., Ltd. · 2014
- Triple-band bend tolerant optical waveguide236US 7,130,516 B23M Innovative Properties Company · 2006
- Optical fiber and method for making such fiber230US 7,313,312 B2Corning Incorporated · 2007
- Low attenuation optical waveguide226US 6,282,354 B1Corning Incorporated · 2001