G02F 1/132
Thermal activation of liquid crystals exhibiting a thermo-optic effect
Official title: {Thermal activation of liquid crystals exhibiting a thermo-optic effect}
G02F1/132 (Thermal activation of liquid crystals exhibiting a thermo-optic effect) appears on 232 US grants and 119 published applications in this corpus.
Search patents in G02F- Granted patents
- 232
- Published applications
- 119
- Assignees
- 137
- Inventors
- 484
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 8 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 13 | 0 |
| 1988 | 11 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 9 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 0 | 4 |
| 2003 | 6 | 4 |
| 2004 | 2 | 2 |
| 2005 | 2 | 4 |
| 2006 | 2 | 1 |
| 2007 | 2 | 0 |
| 2008 | 1 | 5 |
| 2009 | 2 | 3 |
| 2010 | 5 | 5 |
| 2011 | 3 | 4 |
| 2012 | 4 | 5 |
| 2013 | 2 | 6 |
| 2014 | 6 | 9 |
| 2015 | 4 | 10 |
| 2016 | 6 | 7 |
| 2017 | 9 | 9 |
| 2018 | 8 | 6 |
| 2019 | 10 | 4 |
| 2020 | 5 | 3 |
| 2021 | 4 | 8 |
| 2022 | 3 | 5 |
| 2023 | 3 | 4 |
| 2024 | 4 | 5 |
| 2025 | 5 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Smectic liquid crystal color display screen251US 4,593,978 AThomson-CSF · 1986
- Transflective liquid crystal display with integral heating unit and temperature sensor197US 4,634,225 AGeneral Electric Company · 1987
- Polymer dispersed liquid crystal (PDLC) film using heat or an electric field to change state and the other to change back126US 6,002,383 ADai Nippon Printing Co.Ltd. · 1999
- Impact resistant ferroelectric liquid crystal apparatus115US 5,150,231 ACanon Kabushiki Kaisha · 1992
- Light valve for use in a color display unit with a diffraction grating assembly included in the valve88US 4,751,509 ANEC Corporation · 1988