C03B 2201/12
Doped with fluorine
Official title: doped with fluorine (C03B2201/14 takes precedence)
C03B2201/12 (Doped with fluorine) appears on 512 US grants and 526 published applications in this corpus.
Search patents in C03B- Granted patents
- 512
- Published applications
- 526
- Assignees
- 128
- Inventors
- 906
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 7 | 0 |
| 1987 | 10 | 0 |
| 1988 | 4 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 9 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 14 | 9 |
| 2002 | 24 | 44 |
| 2003 | 19 | 37 |
| 2004 | 34 | 33 |
| 2005 | 21 | 28 |
| 2006 | 14 | 18 |
| 2007 | 9 | 13 |
| 2008 | 14 | 25 |
| 2009 | 11 | 21 |
| 2010 | 11 | 17 |
| 2011 | 16 | 23 |
| 2012 | 18 | 29 |
| 2013 | 13 | 16 |
| 2014 | 21 | 11 |
| 2015 | 14 | 26 |
| 2016 | 18 | 26 |
| 2017 | 22 | 26 |
| 2018 | 16 | 8 |
| 2019 | 12 | 17 |
| 2020 | 9 | 17 |
| 2021 | 15 | 10 |
| 2022 | 13 | 15 |
| 2023 | 16 | 29 |
| 2024 | 10 | 8 |
| 2025 | 12 | 12 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polarization maintaining optical fiber and polarization maintaining optical fiber manufacturing method11 Aug 2026US 12,704,672 B2Sumitomo Electric Industries, 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
- Optical fiber glass preform and method for manufacturing optical fiber glass preform7 Apr 2026US 12,595,203 B2Shin-Etsu Chemical Co., Ltd.
- Optical fiber manufacturing method and apparatus10 Mar 2026US 12,570,566 B2Furukawa Electric Co., Ltd.
- 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
- Single mode optical fiber161US 7,623,747 B2Draka Comteq B.V. · 2009
- GRIN fiber lenses160US 6,542,665 B2Lucent Technologies Inc. · 2003