G02F 1/017
Structures with periodic or quasi periodic potential variation
Official title: Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells
G02F1/017 (Structures with periodic or quasi periodic potential variation) appears on 948 US grants and 825 published applications in this corpus.
Search patents in G02F- Granted patents
- 948
- Published applications
- 825
- Assignees
- 373
- Inventors
- 1,879
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 15 | 0 |
| 1990 | 12 | 0 |
| 1991 | 20 | 0 |
| 1992 | 27 | 0 |
| 1993 | 16 | 0 |
| 1994 | 18 | 0 |
| 1995 | 21 | 0 |
| 1996 | 35 | 0 |
| 1997 | 19 | 0 |
| 1998 | 23 | 0 |
| 1999 | 17 | 0 |
| 2000 | 11 | 0 |
| 2001 | 9 | 5 |
| 2002 | 10 | 24 |
| 2003 | 19 | 36 |
| 2004 | 32 | 33 |
| 2005 | 20 | 56 |
| 2006 | 43 | 29 |
| 2007 | 24 | 30 |
| 2008 | 25 | 21 |
| 2009 | 32 | 32 |
| 2010 | 27 | 20 |
| 2011 | 21 | 19 |
| 2012 | 15 | 18 |
| 2013 | 23 | 13 |
| 2014 | 12 | 12 |
| 2015 | 13 | 30 |
| 2016 | 25 | 32 |
| 2017 | 33 | 31 |
| 2018 | 25 | 46 |
| 2019 | 34 | 85 |
| 2020 | 53 | 47 |
| 2021 | 48 | 51 |
| 2022 | 48 | 46 |
| 2023 | 35 | 32 |
| 2024 | 33 | 38 |
| 2025 | 20 | 17 |
| 2026 | 23 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02F 1/01708In an optical wavequide structure357
- G02F 1/01791Quantum boxes or quantum dots216
- G02F 1/01725Non-rectangular quantum well structures146
- G02F 1/01716Optically controlled superlattice or quantum well devices139
- G02F 1/01766Strained superlattice devices43
- G02F 1/01775Involving an inter-subband transition in one well14
- G02F 1/01783Quantum wires11
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Most cited
By later US patents
- Nanocomposite materials with engineered properties395US 6,710,366 B1UltraDots, Inc. · 2004
- Optical fibre with quantum dots341US 5,881,200 ABritish Telecommunications Public Ltd.Co. · 1999
- Controllable surface filter264US 5,619,366 ATexas Instruments Incorporated · 1997
- Elecronically tunable optical periodic surface filters with an alterable resonant frequency262US 5,619,365 ATexas Instruments Incorporated · 1997
- Display apparatus, backplane and mold for making backplane bracket253US 10,531,579 B2Shenzhen China Star Optoelectronics Technology Co., Ltd. · 2020