G02F 1/133524
Light-guides
Official title: {Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides}
G02F1/133524 (Light-guides) appears on 740 US grants and 816 published applications in this corpus.
Search patents in G02F- Granted patents
- 740
- Published applications
- 816
- Assignees
- 283
- Inventors
- 1,816
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 3 |
| 2002 | 6 | 2 |
| 2003 | 4 | 6 |
| 2004 | 5 | 6 |
| 2005 | 3 | 17 |
| 2006 | 7 | 23 |
| 2007 | 10 | 17 |
| 2008 | 14 | 21 |
| 2009 | 15 | 17 |
| 2010 | 10 | 21 |
| 2011 | 8 | 19 |
| 2012 | 14 | 20 |
| 2013 | 14 | 24 |
| 2014 | 26 | 33 |
| 2015 | 25 | 57 |
| 2016 | 46 | 45 |
| 2017 | 40 | 29 |
| 2018 | 30 | 60 |
| 2019 | 46 | 57 |
| 2020 | 52 | 66 |
| 2021 | 63 | 75 |
| 2022 | 68 | 56 |
| 2023 | 52 | 46 |
| 2024 | 59 | 46 |
| 2025 | 44 | 27 |
| 2026 | 9 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical component and light control device using the optical component15 Sep 2026US 12,734,864 B2Nissan Motor Co., Ltd.
- Light control film and method of making thereof25 Aug 2026US 12,717,070 B23M Innovative Properties Company
- Light control film having second louvers inclined with respect to first louvers21 Jul 2026US 12,687,663 B23M Innovative Properties Company
- Display apparatus having back-light unit and liquid crystal panel30 Jun 2026US 12,669,731 B2LG Display Co., Ltd.
- Backlight modules and display device9 Jun 2026US 12,650,553 B2Wuhu Tianma Automotive Electronics Co., Ltd.
- Light control film and method of manufacture thereof8 Oct 2026US 2026/0309900 A13M Innovative Properties Company
- Display panel17 Sep 2026US 2026/0277049 A1Hannstar Display Corp.
- Display device and method of manufacturing the same3 Sep 2026US 2026/0259449 A1Beijing Boe Display Technology Co., Ltd.
- Laser-based display having controllabe light guide6 Aug 2026US 2026/0227656 A1Distance Technologies Oy
- Infrared illumination for a liquid crystal display6 Aug 2026US 2026/0227657 A1Ford Global Technologies, LLC
Most cited
By later US patents
- Apparatus and method for an electronically controlled color filter for use in information display applications363US 5,032,007 AHoneywell Inc. · 1991
- System and method employing LED light sources for a projection display246US 6,224,216 B1InFocus Corporation · 2001
- Illuminating apparatus, display panel, view finder, video display apparatus, and video camera mounting the elements246US 6,992,718 B1Matsushita Electric Industrial Co., Ltd. · 2006
- Direct view display device with array of tapered waveguide on viewer side239US 5,481,385 AAlliedSignal Inc. · 1996
- Backlight assembly for improved illumination employing tapered optical elements228US 5,598,281 AAlliedSignal Inc. · 1997