F21V 3/12
The coatings comprising photoluminescent substances
Official title: the coatings comprising photoluminescent substances
F21V3/12 (The coatings comprising photoluminescent substances) appears on 218 US grants and 279 published applications in this corpus.
Search patents in F21V- Granted patents
- 218
- Published applications
- 279
- Assignees
- 110
- Inventors
- 446
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 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 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 4 |
| 2008 | 0 | 6 |
| 2009 | 2 | 3 |
| 2010 | 6 | 17 |
| 2011 | 7 | 27 |
| 2012 | 8 | 44 |
| 2013 | 16 | 41 |
| 2014 | 35 | 31 |
| 2015 | 19 | 20 |
| 2016 | 24 | 16 |
| 2017 | 26 | 17 |
| 2018 | 19 | 12 |
| 2019 | 14 | 7 |
| 2020 | 13 | 9 |
| 2021 | 4 | 5 |
| 2022 | 6 | 5 |
| 2023 | 3 | 1 |
| 2024 | 4 | 4 |
| 2025 | 2 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Color-changing lampshade and lamp17 Mar 2026US 12,578,079 B2Shenzhen Aurora Technology Limited
- Backlight unit10 Feb 2026US 12,546,458 B2Seoul Semiconductor Co., Ltd.
- Light tubes, light fixtures, and light bodies10 Jun 2025US 12,326,247 B2Hangzhou Hangke Optoelectronics Co., Ltd.
- Luminescent component4 Feb 2025US 12,215,262 B2Avantama AG
- Lighting device having improved light emission and clean air function26 Nov 2024US 12,152,768 B2Denka Company Limited
- A led filament lamp20 Aug 2026US 2026/0243395 A1Signify Holding B. V.
- Light emitting device providing improved viewing comfort6 Aug 2026US 2026/0227048 A1Signify Holding B. V.
- Glare reduction for a lighting device6 Nov 2025US 2025/0341293 A1Signify Holding B. V.
- Color-changing lampshade and lamp28 Aug 2025US 2025/0271120 A1Shenzhen Aurora Technology Limited
- Lighting device26 Sep 2024US 2024/0318805 A1Denka Company Limited
Most cited
By later US patents
- Color tunable light source397US 6,357,889 B1General Electric Company · 2002
- Phosphorous fluorescent light assembly excited by light emitting diodes228US 6,068,383 A2000
- Tubular blue LED lamp with remote phosphor171US 7,618,157 B1Osram Sylvania Inc. · 2009
- Colored lamp119US 4,382,272 ASiemens Aktiengesellschaft · 1983
- Led light with active cooling110US 7,556,406 B2Lumination LLC · 2009