H01S 3/1698
Rare earth
Official title: {rare earth}
H01S3/1698 (Rare earth) appears on 80 US grants and 68 published applications in this corpus.
Search patents in H01S- Granted patents
- 80
- Published applications
- 68
- Assignees
- 73
- Inventors
- 251
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 3 |
| 2004 | 0 | 3 |
| 2005 | 2 | 2 |
| 2006 | 1 | 1 |
| 2007 | 2 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 1 |
| 2014 | 4 | 4 |
| 2015 | 5 | 9 |
| 2016 | 4 | 7 |
| 2017 | 9 | 2 |
| 2018 | 1 | 0 |
| 2019 | 3 | 3 |
| 2020 | 2 | 5 |
| 2021 | 1 | 4 |
| 2022 | 2 | 4 |
| 2023 | 3 | 4 |
| 2024 | 3 | 2 |
| 2025 | 2 | 5 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical amplifying fiber, optical fiber amplifier, and optical communication system15 Sep 2026US 12,738,707 B2Furukawa Electric Co., Ltd.
- Doped fiber amplifier having pass-through pump laser with integrated optical isolator4 Aug 2026US 12,700,708 B2II-Vi Delaware, Inc.
- Optical fiber raw material composition, optical fiber, and optical fiber product19 May 2026US 12,633,715 B2Huawei Technologies Co., Ltd.
- Optical fiber amplifier for reducing differential modal gain of an optical fiber3 Mar 2026US 12,567,715 B2Huawei Technologies Canada Co., Ltd.
- Systems and methods for laser pulse monitoring and calibration2 Sep 2025US 12,402,945 B2Boston Scientific Scimed, Inc.
- Integrated ceramic waveguide optical amplifiers and laser devices9 Jul 2026US 2026/0196793 A1
- Systems and methods for laser pulse monitoring and calibration27 Nov 2025US 2025/0359931 A1Boston Scientific Scimed, Inc.
- Semiconductor laser pumped solid state laser20 Nov 2025US 2025/0357719 A1KYOCERA SOC Corporation
- Visible ceramic laser, gain medium for same, and process of making the gain medium6 Nov 2025US 2025/0343389 A1Imra America, Inc.
- Laser resonator and optical pumping system for medical laser systems16 Oct 2025US 2025/0318872 A1Lumenis Ltd.
Most cited
By later US patents
- Laser composition for preventing photo-induced damage25US 6,154,598 APolaroid Corporation · 2000
- Optical fibers for optical amplifiers24US 5,668,659 ANippon Telegraph and Telephone Corporation · 1997
- Rare earth polymers, optical amplifiers and optical fibers23US 6,292,292 B1Photon-X, Inc. · 2001
- Device for ablation of material by means of laser radiation22US 6,235,017 B1VITCON Projektconsult GmbH · 2001
- Four-level multiply doped rare earth laser system20US 5,299,210 ARutgers University · 1994