C03B 2201/34
Doped with rare earth metals, i.e. with sc, y or lanthanides
Official title: doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers
C03B2201/34 (Doped with rare earth metals, i.e. with sc, y or lanthanides) appears on 265 US grants and 198 published applications in this corpus.
Search patents in C03B- Granted patents
- 265
- Published applications
- 198
- Assignees
- 152
- Inventors
- 599
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 8 | 0 |
| 1994 | 8 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 12 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 2 |
| 2002 | 12 | 13 |
| 2003 | 10 | 29 |
| 2004 | 16 | 15 |
| 2005 | 8 | 18 |
| 2006 | 12 | 5 |
| 2007 | 5 | 8 |
| 2008 | 9 | 9 |
| 2009 | 6 | 9 |
| 2010 | 4 | 9 |
| 2011 | 6 | 6 |
| 2012 | 6 | 10 |
| 2013 | 9 | 9 |
| 2014 | 8 | 5 |
| 2015 | 7 | 4 |
| 2016 | 5 | 5 |
| 2017 | 5 | 4 |
| 2018 | 4 | 6 |
| 2019 | 5 | 2 |
| 2020 | 4 | 9 |
| 2021 | 4 | 4 |
| 2022 | 2 | 4 |
| 2023 | 5 | 4 |
| 2024 | 5 | 4 |
| 2025 | 3 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cleaning step to remove metals or metal oxides from porous glass body19 May 2026US 12,630,459 B2Corning Incorporated
- Fabrication and thermal shaping of transparent glass9 Dec 2025US 12,492,140 B2Glassomer GmbH
- Preforms for speckle-free output optical fibers having structured silica sections, methods of such preform manufacture, and improved speckle-free output optical fibers15 Apr 2025US 12,276,830 B2biolitec Holding GmbH & Co KG
- Glass and method for manufacturing the same21 Jan 2025US 12,202,767 B2National Institute of Advanced Industrial Science and Technology
- Nanoparticle doping for lasers and amplifiers operating at eye-safer wavelengths, and/or exhibiting reduced stimulated Brillouin scattering19 Nov 2024US 12,149,038 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Method of making a doped material and associated photonic device29 Jan 2026US 2026/0028264 A1
- Optical Fiber, Optical Fiber Preparation Method, and Optical Fiber Amplifier9 Oct 2025US 2025/0316945 A1Huawei Technologies Co., Ltd.
- Preforms for Speckle-Free Output Optical Fibers Having Structured Silica Sections, Methods of Such Preform Manufacture, and Improved Speckle-Free Output Optical Fibers31 Jul 2025US 2025/0244525 A1biolitec Holding GmbH & Co KG
- Pedestal-free, thulium-doped optical fiber8 May 2025US 2025/0149843 A1nLIGHT, Inc.
- Reducing light-induced loss in optical fibre13 Feb 2025US 2025/0052946 A1Nkt Photonics A/S
Most cited
By later US patents
- Article comprising a micro-structured optical fiber, and method of making such fiber283US 5,802,236 ALucent Technologies Inc. · 1998
- Optical fiber and method for making such fiber230US 7,313,312 B2Corning Incorporated · 2007
- Large core area single mode optical fiber226US 8,903,214 B2Nkt Photonics A/S · 2014
- 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