C03B 2201/24
Doped with nitrogen
Official title: doped with nitrogen, e.g. silicon oxy-nitride glasses
C03B2201/24 (Doped with nitrogen) appears on 47 US grants and 37 published applications in this corpus.
Search patents in C03B- Granted patents
- 47
- Published applications
- 37
- Assignees
- 28
- Inventors
- 124
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 2 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 2 | 2 |
| 2006 | 3 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 3 |
| 2009 | 0 | 2 |
| 2010 | 3 | 1 |
| 2011 | 2 | 5 |
| 2012 | 1 | 0 |
| 2013 | 2 | 5 |
| 2014 | 3 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 3 |
| 2017 | 5 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber4 Feb 2025US 12,215,048 B2Heraeus Quarzglas GmbH & Co.KG
- System and method for nitrogen doping of a glass article6 Feb 2024US 11,891,331 B2Corning Incorporated
- Method for sintering of optical fibre preform25 Apr 2023US 11,634,351 B2Sterlite Technologies Limited
- High chlorine content low attenuation optical fiber1 Feb 2022US 11,237,321 B2Corning Incorporated
- Low loss optical fiber with core codoped with two or more halogens25 Feb 2020US 10,571,628 B2Corning Incorporated
- Hollow core optical fiber, hollow core optical fiber preform, and method of making the same28 Aug 2025US 2025/0271612 A1Corning Incorporated
- Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber25 Aug 2022US 2022/0267193 A1Heraeus Quarzglas GmbH & Co.KG
- System and method for nitrogen doping of a glass article11 Nov 2021US 2021/0347690 A1Corning Incorporated
- Method for sintering of optical fibre preform11 Mar 2021US 2021/0070647 A1Sterlite Technologies Limited
- High chlorine content low attenuation optical fiber5 Dec 2019US 2019/0369325 A1Corning Incorporated
Most cited
By later US patents
- Process for preparing glass preform for optical fiber46US 4,402,720 ANippon Telegraph & Telephone Public Corporation · 1983
- Method of preparing doped silica glass37US 4,680,048 ASeiko Epson Corporation · 1987
- Multimode optical fibre having a refractive index profile, optical communication system using same and method for manufacturing such a fibre35US 7,421,172 B2Draka Comteq B.V. · 2008
- Method of making nitrogen-doped graded index optical waveguides27US 4,203,744 ACorning Glass Works · 1980
- Use of amorphous carbon film as a hardmask in the fabrication of optical waveguides25US 7,079,740 B2APPLIED Materials.Inc. · 2006