G02F 2413/15
Indexing scheme related to g02f1/13363, i.e. to birefringent elements: with twisted orientation
Official title: with twisted orientation, e.g. comprising helically oriented LC-molecules or a plurality of twisted birefringent sublayers
G02F2413/15 (Indexing scheme related to g02f1/13363, i.e. to birefringent elements: with twisted orientation) appears on 65 US grants and 28 published applications in this corpus.
Search patents in G02F- Granted patents
- 65
- Published applications
- 28
- Assignees
- 39
- Inventors
- 172
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 1 |
| 2003 | 6 | 1 |
| 2004 | 3 | 3 |
| 2005 | 4 | 6 |
| 2006 | 0 | 3 |
| 2007 | 5 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 2 | 3 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrically controlled optical screen21 Apr 2026US 12,607,894 B2Coretronic Corporation
- Phase difference film, circularly polarizing plate, and display device10 Jan 2023US 11,550,088 B2FUJIFILM Corporation
- Display device27 Sep 2022US 11,454,842 B2Samsung Display Co., Ltd.
- Liquid crystal modulator13 Sep 2022US 11,442,323 B2Oxford University Innovation Limited
- Optical film having a liquid crystal layer including twisted nematic liquid crystal compounds27 Apr 2021US 10,989,850 B2LG Chem.Ltd.
- Composition, optically anisotropic film, and compound2 Apr 2026US 2026/0092215 A1FUJIFILM Corporation
- Electrically controlled optical screen1 Feb 2024US 2024/0036429 A1Coretronic Corporation
- Phase difference film, circularly polarizing plate, and display device15 Dec 2022US 2022/0397712 A1FUJIFILM Corporation
- Devices including birefringent medium having chirality25 Aug 2022US 2022/0269120 A1Facebook Technologies, LLC
- Display device10 Feb 2022US 2022/0043300 A1Samsung Display Co., Ltd.
Most cited
By later US patents
- Liquid crystal display device161US 4,909,606 ASeiko Epson Corporation · 1990
- Liquid crystal display device and method of fabrication109US 4,844,569 ASeiko Epson Corporation · 1989
- Reflective liquid crystal device100US 6,204,904 B1Sharp Kabushiki Kaisha · 2001
- Color liquid crystal display56US 6,169,589 ACitizen Watch Co., Ltd. · 2001
- Liquid crystal device and electronic equipment using the same53US 5,838,408 ASeiko Epson Corporation · 1998