G02F 1/178
Based on pressure effects
Official title: {based on pressure effects (G02F1/195 takes precedence)}
G02F1/178 (Based on pressure effects) appears on 12 US grants and 10 published applications in this corpus.
Search patents in G02F- Granted patents
- 12
- Published applications
- 10
- Assignees
- 14
- Inventors
- 20
- Latest grant
- 6 Aug 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 4 |
| 2007 | 4 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 2 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Display device11 Jan 2018US 2018/0011361 A1Samsung Display Co., Ltd.
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- Piezochromic device13 Sep 2012US 2012/0229881 A1Sun Chemical Corporation
Most cited
By later US patents
- Apparatus for measuring pressure by absorption spectrum change34US 4,270,050 AASEA Aktiebolag · 1981
- Switching of thermochromic and pressure sensitive films with surface acoustic waves25US 4,236,156 AVought Corporation · 1980
- Pressure sensitive electrochromic device and method of fabricating the same6US 7,158,276 B1Daxon Technology Inc. · 2007
- Dichroic transducer4US 4,284,858 ARockwell International Corporation · 1981
- Variable lightwave functional circuit and variable lightwave functional apparatus4US 7,231,103 B2Japan Science and Technology Agency · 2007