G02F 1/01725
Non-rectangular quantum well structures
Official title: {Non-rectangular quantum well structures, e.g. graded or stepped quantum wells}
G02F1/01725 (Non-rectangular quantum well structures) appears on 146 US grants and 128 published applications in this corpus.
Search patents in G02F- Granted patents
- 146
- Published applications
- 128
- Assignees
- 60
- Inventors
- 219
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 5 |
| 2003 | 3 | 6 |
| 2004 | 3 | 8 |
| 2005 | 4 | 27 |
| 2006 | 24 | 11 |
| 2007 | 8 | 9 |
| 2008 | 7 | 3 |
| 2009 | 8 | 4 |
| 2010 | 7 | 3 |
| 2011 | 1 | 3 |
| 2012 | 4 | 2 |
| 2013 | 3 | 2 |
| 2014 | 4 | 3 |
| 2015 | 4 | 2 |
| 2016 | 2 | 4 |
| 2017 | 3 | 2 |
| 2018 | 1 | 1 |
| 2019 | 3 | 23 |
| 2020 | 11 | 4 |
| 2021 | 3 | 1 |
| 2022 | 12 | 3 |
| 2023 | 3 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electro-absorption modulator26 May 2026US 12,638,704 B2Airbus SAS
- Reprogrammable quantum processor architecture21 Nov 2023US 11,822,163 B2Equal1.Labs Inc.
- Reprogrammable quantum processor architecture incorporating quantum error correction25 Apr 2023US 11,635,642 B2Equal1.Labs Inc.
- Electro-optical modulator and methods of formation thereof14 Mar 2023US 11,604,371 B2STMicroelectronics (Crolles 2) SAS
- Optical device including three-coupled quantum well structure having asymmetric multi-energy levels18 Oct 2022US 11,476,385 B2Samsung Electronics Co., Ltd.
- Semiconductor optical modulator5 Jun 2025US 2025/0180935 A1Mitsubishi Electric Corporation
- Electro-absorption modulator27 Apr 2023US 2023/0127711 A1Airbus SAS
- Quantum confined nanostructures with improved homogeneity and methods for making the same10 Nov 2022US 2022/0357602 A1X Development LLC
- Electro-optical modulator and methods of formation thereof11 Aug 2022US 2022/0252912 A1STMicroelectronics (Crolles 2) SAS
- Reprogrammable quantum processor architecture incorporating quantum error correction5 May 2022US 2022/0137439 A1Equal1.Labs Inc.
Most cited
By later US patents
- Transmitter photonic integrated circuit (TxPIC) chips78US 7,885,492 B2Infinera Corporation · 2011
- Tilted valance-band quantum well double heterostructures for single step active and passive optical waveguide device monolithic integration69US 5,953,479 AThe United States of America as represented by the Secretary of the Army · 1999
- Transmitter photonic integrated circuits (TxPIC) and optical transport networks employing TxPICs55US 7,283,694 B2Infinera Corporation · 2007
- Transmitter photonic integrated circuit (TxPIC) chip architectures and drive systems and wavelength stabilization for TxPICs54US 7,079,715 B2Infinera Corporation · 2006
- Method of in-wafer testing of monolithic photonic integrated circuits (PICs) formed in a semiconductor wafer48US 6,985,648 B2Infinera Corporation · 2006