G02F 1/13737
In liquid crystals doped with a pleochroic dye
Official title: {in liquid crystals doped with a pleochroic dye}
G02F1/13737 (In liquid crystals doped with a pleochroic dye) appears on 88 US grants and 85 published applications in this corpus.
Search patents in G02F- Granted patents
- 88
- Published applications
- 85
- Assignees
- 61
- Inventors
- 277
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 6 |
| 2013 | 0 | 3 |
| 2014 | 3 | 2 |
| 2015 | 3 | 6 |
| 2016 | 1 | 9 |
| 2017 | 1 | 4 |
| 2018 | 7 | 7 |
| 2019 | 8 | 3 |
| 2020 | 6 | 11 |
| 2021 | 6 | 5 |
| 2022 | 11 | 6 |
| 2023 | 7 | 8 |
| 2024 | 10 | 7 |
| 2025 | 3 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Transflective liquid crystal display214US 4,398,805 AGeneral Electric Company · 1983
- Adjustable transparency spectacles160US 5,067,795 AGianni Bulgari S.p.A. · 1991
- Liquid crystal variable color density lens and eye protective devices incorporating the same152US 5,172,256 A1992
- Liquid crystal display devices37US 4,032,219 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britian and Northern Ireland · 1977
- Optically active cyano-biphenyl compounds and liquid crystal materials containing them37US 4,077,260 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1978