H01S 5/3422
Comprising type-ii quantum wells or superlattices
Official title: {comprising type-II quantum wells or superlattices}
H01S5/3422 (Comprising type-ii quantum wells or superlattices) appears on 77 US grants and 78 published applications in this corpus.
Search patents in H01S- Granted patents
- 77
- Published applications
- 78
- Assignees
- 50
- Inventors
- 163
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 3 |
| 2004 | 6 | 2 |
| 2005 | 2 | 3 |
| 2006 | 2 | 6 |
| 2007 | 3 | 4 |
| 2008 | 3 | 5 |
| 2009 | 2 | 1 |
| 2010 | 3 | 3 |
| 2011 | 3 | 0 |
| 2012 | 2 | 6 |
| 2013 | 3 | 3 |
| 2014 | 4 | 4 |
| 2015 | 4 | 3 |
| 2016 | 6 | 3 |
| 2017 | 1 | 4 |
| 2018 | 3 | 1 |
| 2019 | 0 | 2 |
| 2020 | 0 | 3 |
| 2021 | 2 | 10 |
| 2022 | 0 | 1 |
| 2023 | 12 | 5 |
| 2024 | 0 | 2 |
| 2025 | 0 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reducing auger recombination in semiconductor optical devices9 Jun 2026US 12,651,890 B2University of Surrey
- Weak index guiding of interband cascade lasers24 Mar 2026US 12,586,987 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Highly stable semiconductor lasers and sensors for III-V and silicon photonic integrated circuits19 Sep 2023US 11,761,892 B2The Government of the United States of America, as represented by the Secretary of the Navy
- SiGeSn laser diodes and method of fabricating same12 Sep 2023US 11,757,257 B2Board of Trustees of the University of Arkansas
- Highly stable semiconductor lasers and sensors for III-V and silicon photonic integrated circuits8 Aug 2023US 11,719,633 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Distributed Feedback (DFB) Interband Cascade Lasers With Hybrid Cladding Layers6 Nov 2025US 2025/0343394 A1The Board of Regents of the University of Oklahoma
- Reducing Auger Recombination In Semiconductor Optical Devices6 Nov 2025US 2025/0343395 A1University of Surrey
- Interband Cascade Lasers with Improved Voltage Efficiency26 Dec 2024US 2024/0429685 A1The Board of Regents of the University of Oklahoma
- Optoelectronic component that is insensitive to dislocations19 Sep 2024US 2024/0313509 A1Centre National De La Recherche Scientifique
- Cascade lasers28 Sep 2023US 2023/0307890 A1ETH Zurich
Most cited
By later US patents
- Light emitting devices based on interband transitions in type-II quantum well heterostructures56US 5,588,015 AUniversity of Houston · 1996
- Type II quantum well laser with enhanced optical matrix48US 5,793,787 AThe United States of America as represented by the Secretary of the Navy · 1998
- Interband quantum well cascade laser, with a blocking quantum well for improved quantum efficiency38US 5,799,026 AThe United States of America as represented by the Secretary of the Navy · 1998
- Optoelectronic devices based on intraband transitions in combinations of type I and type II tunnel junctions35US 5,079,601 AInternational Business Machines Corporation · 1992
- Continuous wavelength tunable laser source with optimum orientation of grating and gain medium35US 8,467,430 B2Daylight Solutions, Inc. · 2013