G02F 1/216
Using liquid crystals
Official title: {using liquid crystals, e.g. liquid crystal Fabry-Perot filters}
G02F1/216 (Using liquid crystals) appears on 109 US grants and 94 published applications in this corpus.
Search patents in G02F- Granted patents
- 109
- Published applications
- 94
- Assignees
- 79
- Inventors
- 236
- Latest grant
- 13 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 12 |
| 2003 | 7 | 11 |
| 2004 | 10 | 4 |
| 2005 | 7 | 5 |
| 2006 | 5 | 8 |
| 2007 | 3 | 10 |
| 2008 | 6 | 7 |
| 2009 | 2 | 5 |
| 2010 | 9 | 5 |
| 2011 | 4 | 2 |
| 2012 | 4 | 3 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 2 | 0 |
| 2017 | 0 | 3 |
| 2018 | 0 | 3 |
| 2019 | 3 | 2 |
| 2020 | 2 | 2 |
| 2021 | 3 | 2 |
| 2022 | 1 | 4 |
| 2023 | 2 | 2 |
| 2024 | 3 | 2 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Tunable laser and method to tune a wavelength of a light emitted by the laser13 May 2025US 12,298,130 B2Politecnico Di Milano
- Waveguide-based transmitters with adjustable lighting8 Oct 2024US 12,111,421 B2Apple Inc.
- Systems and methods for detecting edema by fusing hyperspectral and visible image3 Sep 2024US 12,076,162 B2ChemImage Corporation
- Energy modulation systems for diffraction based holographic displays12 Mar 2024US 11,927,915 B2Light Field Lab, Inc.
- Wavelength tunable liquid crystal etalon filter including double seal line and manufacturing method of the same15 Aug 2023US 11,726,368 B2
- Articles and methods for generating tunable coloration and interference upon reflection of incident electromagnetic radiation27 Mar 2025US 2025/0102716 A1The Penn State Research Foundation
- Liquid crystal enabled reconfigurable photonic integrated circuit28 Nov 2024US 2024/0393628 A1University of Massachusetts
- Energy modulation systems for diffraction based holographic displays26 Sep 2024US 2024/0319669 A1Light Field Lab, Inc.
- Wavelength tunable liquid crystal etalon filter including double seal line and manufacturing method of the same6 Jul 2023US 2023/0213819 A1Albatrace, Inc.
- Energy modulation systems for diffraction based holographic displays15 Jun 2023US 2023/0185237 A1Light Field Lab, Inc.
Most cited
By later US patents
- Interferometric modulation of radiation1,041US 6,674,562 B1Iridigm Display Corporation · 2004
- Interferometric modulation of radiation856US 6,680,792 B2Iridigm Display Corporation · 2004
- Controlling micro-electro-mechanical cavities673US 6,710,908 B2Iridigm Display Corporation · 2004
- Interferometric modulation of radiation436US 6,867,896 B2Idc, LLC · 2005
- Chiral smectic liquid crystal optical modulators having variable retardation259US 5,381,253 ABoard of Regents of the University of Colorado · 1995