F21V 13/14
The elements being filters or photoluminescent elements, reflectors and refractors
Official title: the elements being filters or photoluminescent elements, reflectors and refractors
F21V13/14 (The elements being filters or photoluminescent elements, reflectors and refractors) appears on 597 US grants and 674 published applications in this corpus.
Search patents in F21V- Granted patents
- 597
- Published applications
- 674
- Assignees
- 246
- Inventors
- 998
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 2 |
| 2003 | 6 | 3 |
| 2004 | 1 | 0 |
| 2005 | 1 | 5 |
| 2006 | 0 | 3 |
| 2007 | 4 | 7 |
| 2008 | 3 | 7 |
| 2009 | 3 | 7 |
| 2010 | 5 | 19 |
| 2011 | 13 | 33 |
| 2012 | 14 | 41 |
| 2013 | 23 | 79 |
| 2014 | 50 | 63 |
| 2015 | 51 | 71 |
| 2016 | 69 | 69 |
| 2017 | 61 | 71 |
| 2018 | 66 | 44 |
| 2019 | 76 | 49 |
| 2020 | 45 | 29 |
| 2021 | 26 | 23 |
| 2022 | 23 | 17 |
| 2023 | 15 | 12 |
| 2024 | 9 | 5 |
| 2025 | 8 | 9 |
| 2026 | 0 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Tunable beam comprising laser phosphor engine30 Jul 2026US 2026/0218863 A1Signify Holding B. V.
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Most cited
By later US patents
- Illumination devices using natural light LEDs1,018US 8,992,042 B2Halma Holdings, Inc. · 2015
- Non-incandescent lightbulb package using light emitting diodes347US 6,504,301 B1Lumileds Lighting U.S., LLC · 2003
- Photolytically and environmentally stable multilayer structure for high efficiency electromagnetic energy conversion and sustained secondary emission218US 8,232,533 B2Performance Indicator, LLC · 2012
- Photolytically and environmentally stable multilayer structure for high efficiency electromagnetic energy conversion and sustained secondary emission214US 8,178,852 B2Performance Indicator, LLC · 2012
- Photolytically and environmentally stable multilayer structure for high efficiency electromagnetic energy conversion and sustained secondary emission211US 8,415,642 B2Performance Indicator, LLC · 2013