G02F 1/01733
Coupled or double quantum wells
Official title: {Coupled or double quantum wells}
G02F1/01733 (Coupled or double quantum wells) appears on 23 US grants and 15 published applications in this corpus.
Search patents in G02F- Granted patents
- 23
- Published applications
- 15
- Assignees
- 18
- Inventors
- 58
- Latest grant
- 18 Oct 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 2 |
| 2014 | 2 | 2 |
| 2015 | 2 | 1 |
| 2016 | 1 | 3 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Optical device including three-coupled quantum well structure having asymmetric multi-energy levels18 Oct 2022US 11,476,385 B2Samsung Electronics Co., Ltd.
- Optical device including three-coupled quantum well structure having asymmetric multi-energy levels28 Jul 2020US 10,727,370 B2Samsung Electronics Co., Ltd.
- Optical device including three-coupled quantum well structure12 Dec 2017US 9,841,617 B2Gwangju Institute of Science and Technology
- Semiconductor optical modulator and optical module15 Aug 2017US 9,733,497 B2Mitsubishi Electric Corporation
- Transmission type high-absorption optical modulator and method of manufacturing the same16 Aug 2016US 9,417,468 B2Samsung Electronics Co., Ltd.
- Optical device including three-coupled quantum well structure having asymmetric multi-energy levels10 Sep 2020US 2020/0287081 A1Samsung Electronics Co., Ltd.
- Optical device including three-coupled quantum well structure having asymmetric multi-energy levels13 Jul 2017US 2017/0200856 A1Samsung Electronics Co., Ltd.
- Transmission type high-absorption optical modulator and method of manufacturing the same3 Nov 2016US 2016/0320642 A1Samsung Electronics Co., Ltd.
- Semiconductor optical modulator and optical module13 Oct 2016US 2016/0299362 A1Mitsubishi Electric Corporation
- Transmission type high-absorption optical modulator and method of manufacturing the same21 Jan 2016US 2016/0018676 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Coupled quantum well optical intensity modulator for INP based optoelectronic integrated circuits and methods therefor37US 5,428,225 AThe United States of America as represented by the Secretary of the Army · 1995
- Electro-optic quantum well device33US 5,047,822 AMartin Marietta Corporation · 1991
- Non-linear quantum dot optical device27US 5,291,034 AHitachi, Ltd. · 1994
- Optical device with an asymmetric dual quantum well structure27US 5,569,934 ACanon Kabushiki Kaisha · 1996
- Coupled quantum-well electro-optical modulator24US 5,105,301 ACSELT - Centro Studi e Laboratori Telecommunicazioni S.p.A. · 1992