G02B 6/0286
Combination of graded index in the central core segment and a graded
Official title: {Combination of graded index in the central core segment and a graded index layer external to the central core segment (G02B6/0288 takes precedence)}
G02B6/0286 (Combination of graded index in the central core segment and a graded) appears on 161 US grants and 130 published applications in this corpus.
Search patents in G02B- Granted patents
- 161
- Published applications
- 130
- Assignees
- 31
- Inventors
- 248
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 8 | 3 |
| 2002 | 14 | 10 |
| 2003 | 7 | 14 |
| 2004 | 17 | 12 |
| 2005 | 7 | 3 |
| 2006 | 6 | 3 |
| 2007 | 3 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 0 |
| 2013 | 2 | 6 |
| 2014 | 2 | 4 |
| 2015 | 6 | 7 |
| 2016 | 5 | 5 |
| 2017 | 5 | 2 |
| 2018 | 6 | 17 |
| 2019 | 5 | 6 |
| 2020 | 8 | 4 |
| 2021 | 7 | 6 |
| 2022 | 4 | 8 |
| 2023 | 9 | 6 |
| 2024 | 2 | 3 |
| 2025 | 2 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Low attenuation optical waveguide226US 6,282,354 B1Corning Incorporated · 2001
- Low dispersion, low-loss single-mode optical waveguide111US 4,715,679 ACorning Glass Works · 1987
- Dispersion compensating fiber and optical transmission system including the same83US 5,838,867 ASumitomo Electric Industries, Ltd. · 1998
- Dispersion compensating single mode waveguide67US 5,999,679 ACorning Incorporated · 1999
- Low bend loss optical fiber64US 7,272,289 B2Corning Incorporated · 2007