F21V 9/45
By adjustment of photoluminescent elements
Official title: by adjustment of photoluminescent elements
F21V9/45 (By adjustment of photoluminescent elements) appears on 219 US grants and 260 published applications in this corpus.
Search patents in F21V- Granted patents
- 219
- Published applications
- 260
- Assignees
- 117
- Inventors
- 481
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 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 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 2 | 7 |
| 2010 | 5 | 8 |
| 2011 | 4 | 10 |
| 2012 | 7 | 14 |
| 2013 | 11 | 35 |
| 2014 | 15 | 22 |
| 2015 | 16 | 35 |
| 2016 | 28 | 20 |
| 2017 | 22 | 27 |
| 2018 | 28 | 18 |
| 2019 | 25 | 15 |
| 2020 | 15 | 2 |
| 2021 | 7 | 12 |
| 2022 | 8 | 10 |
| 2023 | 6 | 8 |
| 2024 | 9 | 5 |
| 2025 | 6 | 3 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Light source device8 Jul 2025US 12,352,409 B2Nichia Corporation
- Light source with disinfection function13 May 2025US 12,298,003 B2Signify Holding B. V.
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- Laser-phosphor engine with rotating converter20 Aug 2026US 2026/0243398 A1Signify Holding B. V.
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- Lightweight winterized lamp30 Apr 2026US 2026/0117964 A1Formosawide Industries Inc.
- Vehicle lighting equipment and vehicle lighting equipment system8 May 2025US 2025/0146642 A1Stanley Electric Co., Ltd.
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Most cited
By later US patents
- Non-incandescent lightbulb package using light emitting diodes347US 6,504,301 B1Lumileds Lighting U.S., LLC · 2003
- Lighting system using multiple colored light emitting sources and diffuser element92US 7,837,348 B2Rensselaer Polytechnic Institute · 2010
- Color wheel assembly for lighting equipment89US 4,800,474 AVari-Lite, Inc. · 1989
- Solid state light source light bulb86US 8,292,468 B2Rensselaer Polytechnic Institute · 2012
- Illumination device with light emitting diodes and moveable light adjustment member65US 8,317,359 B2Xicato, Inc. · 2012