G02F 1/1414
Deformed helix ferroelectric [dhl]
Official title: {Deformed helix ferroelectric [DHL]}
G02F1/1414 (Deformed helix ferroelectric [dhl]) appears on 12 US grants and 9 published applications in this corpus.
Search patents in G02F- Granted patents
- 12
- Published applications
- 9
- Assignees
- 14
- Inventors
- 36
- Latest grant
- 1 Aug 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 3 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Switchable broadband waveplate1 Aug 2023US 11,714,320 B2Meta Platforms Technologies, LLC
- Switchable broadband waveplate4 Jan 2022US 11,215,881 B2Facebook Technologies, LLC
- Switchable liquid crystal fresnel lens3 Apr 2018US 9,933,685 B2The Hong Kong University of Science and Technology
- Video projector employing ferroelectric liquid crystal display18 Jul 2017US 9,709,877 B2Igor Nikolaevich Kompanets
- Electro-optical light modulator5 Jul 2005US 6,914,647 B1Deutsche Telekom AG
- Switchable broadband waveplate17 Mar 2022US 2022/0082890 A1Facebook Technologies, LLC
- Switchable broadband waveplate1 Oct 2020US 2020/0310204 A1Facebook Technologies, LLC
- Voltage-controllable laser output coupler for integrated photonic devices25 Jul 2019US 2019/0229490 A1Macquarie University
- Ferroelectric liquid crystal display cell20 Aug 2015US 2015/0234247 A1
- Video projector23 Apr 2015US 2015/0109537 A1Igor Nikolaevich Kompanets
Most cited
By later US patents
- High contrast distorted helex effect electro-optic devices and tight ferroelectric pitch ferroelectric liquid crystal compositions useful therein12US 5,539,555 ADisplaytech, Inc. · 1996
- Light modulator12US 6,646,710 B2Fuji Xerox Co., Ltd. · 2003
- High contrast distorted helix effect electro-optic devices and tight ferroelectric pitch ferroelectric pitch ferroelectric liquid crystal compositions useful therein9US 5,753,139 ADisplaytech, Inc. · 1998
- Ferroelectric liquid crystal cell with a saturated switching angle or sufficient to give rise to linear liquid crystal domains2US 6,111,631 ARolic AG · 2000
- Liquid crystal shutter2US 6,804,029 B2Citizen Watch Co., Ltd. · 2004