C03B 2201/08
Doped with boron or fluorine or other refractive index decreasing dopant
Official title: doped with boron or fluorine or other refractive index decreasing dopant
C03B2201/08 (Doped with boron or fluorine or other refractive index decreasing dopant) appears on 671 US grants and 603 published applications in this corpus.
Search patents in C03B- Granted patents
- 671
- Published applications
- 603
- Assignees
- 188
- Inventors
- 1,158
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 7 | 0 |
| 1980 | 17 | 0 |
| 1981 | 7 | 0 |
| 1982 | 10 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 11 | 0 |
| 1988 | 8 | 0 |
| 1989 | 12 | 0 |
| 1990 | 5 | 0 |
| 1991 | 10 | 0 |
| 1992 | 15 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 8 | 0 |
| 2000 | 11 | 0 |
| 2001 | 18 | 9 |
| 2002 | 24 | 50 |
| 2003 | 22 | 45 |
| 2004 | 40 | 38 |
| 2005 | 22 | 34 |
| 2006 | 21 | 18 |
| 2007 | 10 | 16 |
| 2008 | 16 | 27 |
| 2009 | 14 | 23 |
| 2010 | 11 | 20 |
| 2011 | 18 | 25 |
| 2012 | 20 | 32 |
| 2013 | 19 | 19 |
| 2014 | 24 | 15 |
| 2015 | 19 | 28 |
| 2016 | 18 | 30 |
| 2017 | 26 | 28 |
| 2018 | 19 | 13 |
| 2019 | 14 | 21 |
| 2020 | 10 | 18 |
| 2021 | 18 | 12 |
| 2022 | 13 | 18 |
| 2023 | 17 | 30 |
| 2024 | 11 | 12 |
| 2025 | 14 | 13 |
| 2026 | 9 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polarization maintaining optical fiber and polarization maintaining optical fiber manufacturing method11 Aug 2026US 12,704,672 B2Sumitomo Electric Industries, Ltd.
- Preparation devices for medium borosilicate medicinal glass tubes and methods thereof21 Jul 2026US 12,686,627 B2Caihong Display Devices Co., Ltd.
- Method for producing fluorine-containing silica glass2 Jun 2026US 12,643,812 B2Sumitomo Electric Industries, Ltd.
- Method for making halogen doped optical element26 May 2026US 12,637,384 B2Corning Incorporated
- Cleaning step to remove metals or metal oxides from porous glass body19 May 2026US 12,630,459 B2Corning Incorporated
- Manufacturing method of optical fiber preform, and optical fiber preform10 Sep 2026US 2026/0265113 A1Sumitomo Electric Industries, Ltd.
- Hollow-core assembly with lossy glass25 Jun 2026US 2026/0177740 A1Corning Incorporated
- Reservoir, method for producing optical fiber, and device for producing optical fiber18 Jun 2026US 2026/0167553 A1Sumitomo Electric Industries, Ltd.
- Multicore optical fiber4 Jun 2026US 2026/0153668 A1Sumitomo Electric Industries, Ltd.
- Method for producing optical fiber preform, and optical fiber preform26 Mar 2026US 2026/0084997 A1Sumitomo Electric Industries, Ltd.
Most cited
By later US patents
- Method of manufacturing fluorine-doped optical fibers270US 4,468,413 AU. S. Philips Corporation · 1984
- UV light-permeable glass and article comprising the same256US 5,474,589 ASumitomo Electric Industries, Ltd. · 1995
- Optical fiber and method for making such fiber230US 7,313,312 B2Corning Incorporated · 2007
- Rare earth doped and large effective area optical fibers for fiber lasers and amplifiers222US 8,213,758 B2Imra America, Inc. · 2012
- Rare earth doped and large effective area optical fibers for fiber lasers and amplifiers219US 8,542,968 B2Imra America, Inc. · 2013