H01S 5/34346
Characterised by the materials of the barrier layers
Official title: {characterised by the materials of the barrier layers}
H01S5/34346 (Characterised by the materials of the barrier layers) appears on 479 US grants and 599 published applications in this corpus.
Search patents in H01S- Granted patents
- 479
- Published applications
- 599
- Assignees
- 207
- Inventors
- 1,034
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 4 |
| 2002 | 11 | 15 |
| 2003 | 18 | 32 |
| 2004 | 14 | 38 |
| 2005 | 22 | 51 |
| 2006 | 25 | 39 |
| 2007 | 27 | 31 |
| 2008 | 22 | 23 |
| 2009 | 26 | 25 |
| 2010 | 29 | 12 |
| 2011 | 16 | 7 |
| 2012 | 10 | 6 |
| 2013 | 2 | 7 |
| 2014 | 9 | 12 |
| 2015 | 10 | 7 |
| 2016 | 15 | 15 |
| 2017 | 18 | 15 |
| 2018 | 16 | 32 |
| 2019 | 30 | 27 |
| 2020 | 20 | 40 |
| 2021 | 27 | 33 |
| 2022 | 21 | 35 |
| 2023 | 20 | 34 |
| 2024 | 17 | 33 |
| 2025 | 19 | 10 |
| 2026 | 16 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Photonic crystal surface light-emitting laser element6 Oct 2026US 12,756,157 B2Kyoto University
- Light emitting element29 Sep 2026US 12,749,868 B2Sony Group Corporation
- Wavelength tunable laser device and method of manufacturing the same15 Sep 2026US 12,738,711 B2Sumitomo Electric Industries, Ltd.
- Laser device, laser device array, and method of producing a laser device15 Sep 2026US 12,738,713 B2Sony Group Corporation
- Optical device11 Aug 2026US 12,706,443 B2Ricoh Company, Ltd.
- Compact ultra-violet laser diode configured for lidar system for air turbulence detection8 Oct 2026US 2026/0312370 A1Palomino Laboratories, Inc.
- Multi-cavity cascaded coupled vertical-cavity surface-emitting laser and manufacture method thereof1 Oct 2026US 2026/0302730 A1University of Electronic Science and Technology of China
- Quantum cascade laser device and method for manufacturing quantum cascade laser device1 Oct 2026US 2026/0302731 A1Mitsubishi Electric 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
Most cited
By later US patents
- Narrow spectral width high-power distributed feedback semiconductor lasers195US 6,195,381 B1Wisconsin Alumni Research Foundation · 2001
- Broadband light emitting device164US 7,019,325 B2Exalos AG · 2006
- Light-emitting semiconductor device producing red wavelength optical radiation81US 6,542,528 B1Ricoh Company, Ltd. · 2003
- Laser diode having an active layer containing N and operable in a 0.6 μm wavelength band65US 6,563,851 B1Ricoh Company, Ltd. · 2003
- Vertical-cavity, surface-emission type laser diode and fabrication process thereof63US 6,674,785 B2Ricoh Company, Ltd. · 2004