H01S 5/3407
Characterised by special barrier layers
Official title: {characterised by special barrier layers}
H01S5/3407 (Characterised by special barrier layers) appears on 247 US grants and 238 published applications in this corpus.
Search patents in H01S- Granted patents
- 247
- Published applications
- 238
- Assignees
- 145
- Inventors
- 542
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 5 |
| 2003 | 8 | 4 |
| 2004 | 4 | 6 |
| 2005 | 8 | 10 |
| 2006 | 6 | 8 |
| 2007 | 3 | 7 |
| 2008 | 6 | 9 |
| 2009 | 11 | 10 |
| 2010 | 10 | 12 |
| 2011 | 10 | 15 |
| 2012 | 7 | 11 |
| 2013 | 7 | 12 |
| 2014 | 18 | 13 |
| 2015 | 16 | 12 |
| 2016 | 10 | 9 |
| 2017 | 8 | 9 |
| 2018 | 10 | 10 |
| 2019 | 16 | 16 |
| 2020 | 5 | 11 |
| 2021 | 14 | 9 |
| 2022 | 4 | 11 |
| 2023 | 6 | 10 |
| 2024 | 4 | 6 |
| 2025 | 6 | 5 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Semiconductor optical device28 Jul 2026US 12,695,268 B2LumentumRadiant GmbH
- Optical modulation and amplification apparatus, optical module, optical network unit, and optical communication system7 Jul 2026US 12,676,462 B2Huawei Technologies Co., Ltd.
- Semiconductor laser components3 Mar 2026US 12,567,724 B2Anhui Gan Semiconductor Co., Ltd.
- Semiconductor devices with structures for emitting or detecting light13 Jan 2026US 12,527,134 B2Squidled SAS
- Laser element16 Dec 2025US 12,500,396 B2Sony Group Corporation
- Thin quantum barrier with high aluminum content for ultraviolet light emitters17 Sep 2026US 2026/0282604 A1The Regents of the University of California
- Light emitting element and distance measuring apparatus10 Sep 2026US 2026/0269573 A1Canon Kabushiki Kaisha
- Optical semiconductor device6 Aug 2026US 2026/0229850 A1Lumentum Operations LLC
- Semiconductor laser modules4 Jun 2026US 2026/0155628 A1Anhui Gan Semiconductor Co., Ltd.
- High-power, high-efficiency infrared-emitting quantum cascade lasers4 Jun 2026US 2026/0155629 A1
Most cited
By later US patents
- Nitride semiconductor device with improved lifetime and high output power273US 6,586,762 B2Nichia Corporation · 2003
- Optical information processing equipment and semiconductor light emitting device suitable therefor258US 6,639,925 B2Hitachi, Ltd. · 2003
- Growth structures and method for forming laser diodes on {30-31} or off cut gallium and nitrogen containing substrates237US 8,351,478 B2Soraa, Inc. · 2013
- Growth structures and method for forming laser diodes on {20-21} or off cut gallium and nitrogen containing substrates234US 8,355,418 B2Soraa, Inc. · 2013
- Method and system for providing bidirectional light sources with broad spectrum140US 8,451,876 B1Soraa, Inc. · 2013