F21V 14/003
Controlling the distribution of the light emitted by adjustment of elements: by
Official title: {by interposition of elements with electrically controlled variable light transmissivity, e.g. liquid crystal elements or electrochromic devices}
F21V14/003 (Controlling the distribution of the light emitted by adjustment of elements: by) appears on 307 US grants and 370 published applications in this corpus.
Search patents in F21V- Granted patents
- 307
- Published applications
- 370
- Assignees
- 147
- Inventors
- 559
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 4 |
| 2007 | 0 | 4 |
| 2008 | 0 | 6 |
| 2009 | 3 | 8 |
| 2010 | 4 | 16 |
| 2011 | 3 | 15 |
| 2012 | 8 | 14 |
| 2013 | 11 | 10 |
| 2014 | 11 | 12 |
| 2015 | 13 | 24 |
| 2016 | 12 | 18 |
| 2017 | 14 | 20 |
| 2018 | 21 | 32 |
| 2019 | 27 | 24 |
| 2020 | 30 | 22 |
| 2021 | 19 | 27 |
| 2022 | 25 | 18 |
| 2023 | 26 | 28 |
| 2024 | 31 | 30 |
| 2025 | 16 | 21 |
| 2026 | 17 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- High intensity lighting projectors319US 5,282,121 AVari-Lite, Inc. · 1994
- Electro-optic flashlight electro-optically controlling the emitted light120US 5,424,927 ARayovac Corporation · 1995
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- High intensity lighting projectors58US 5,829,868 AVari-Lite, Inc. · 1998
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