G02B 6/03694
Multiple layers differing in properties other than the refractive index
Official title: {Multiple layers differing in properties other than the refractive index, e.g. attenuation, diffusion, stress properties}
G02B6/03694 (Multiple layers differing in properties other than the refractive index) appears on 348 US grants and 325 published applications in this corpus.
Search patents in G02B- Granted patents
- 348
- Published applications
- 325
- Assignees
- 168
- Inventors
- 799
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
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| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 15 | 1 |
| 2002 | 9 | 20 |
| 2003 | 17 | 23 |
| 2004 | 20 | 17 |
| 2005 | 16 | 17 |
| 2006 | 14 | 8 |
| 2007 | 14 | 10 |
| 2008 | 9 | 9 |
| 2009 | 8 | 8 |
| 2010 | 6 | 6 |
| 2011 | 3 | 12 |
| 2012 | 7 | 5 |
| 2013 | 8 | 11 |
| 2014 | 9 | 11 |
| 2015 | 15 | 18 |
| 2016 | 12 | 14 |
| 2017 | 14 | 14 |
| 2018 | 10 | 17 |
| 2019 | 16 | 15 |
| 2020 | 23 | 26 |
| 2021 | 16 | 16 |
| 2022 | 14 | 10 |
| 2023 | 10 | 15 |
| 2024 | 11 | 5 |
| 2025 | 5 | 13 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Actuatable optical waveguide12 Mar 2026US 2026/0072208 A1Georgia Tech Research Corporation
- Tri-layer ceramic optical fibers and method of making19 Feb 2026US 2026/0050117 A1Government of the United States as Represented by the Secretary of the Air Force
- Optical fiber, optical fiber preform, and method of manufacturing optical fiber22 Jan 2026US 2026/0023212 A1Lightera Japan Co., Ltd.
- Polarization-maintaining optical fiber20 Nov 2025US 2025/0355161 A1Corning Incorporated
Most cited
By later US patents
- Optical fiber340US 7,555,186 B2Draka Comteq B.V. · 2009
- Optical fiber and method for making such fiber230US 7,313,312 B2Corning Incorporated · 2007
- Low attenuation optical waveguide226US 6,282,354 B1Corning Incorporated · 2001
- Pressure or strain sensitive optical fiber188US 4,770,492 ASpecTran Corporation · 1988
- Optical fiber comprising a refractive index trench131US 4,852,968 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1989