F21V 9/08
Elements for modifying spectral properties, polarisation or intensity of the light emitted
Official title: for producing coloured light, e.g. monochromatic; for reducing intensity of light (with provision for controlling the colour F21V9/40)
F21V9/08 (Elements for modifying spectral properties, polarisation or intensity of the light emitted) appears on 1,168 US grants and 1,223 published applications in this corpus.
Search patents in F21V- Granted patents
- 1,168
- Published applications
- 1,223
- Assignees
- 520
- Inventors
- 1,961
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 15 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 8 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 13 | 0 |
| 1999 | 12 | 0 |
| 2000 | 11 | 0 |
| 2001 | 8 | 4 |
| 2002 | 14 | 12 |
| 2003 | 24 | 24 |
| 2004 | 12 | 20 |
| 2005 | 11 | 31 |
| 2006 | 15 | 25 |
| 2007 | 15 | 18 |
| 2008 | 12 | 38 |
| 2009 | 10 | 38 |
| 2010 | 28 | 42 |
| 2011 | 22 | 43 |
| 2012 | 24 | 56 |
| 2013 | 41 | 89 |
| 2014 | 60 | 101 |
| 2015 | 63 | 90 |
| 2016 | 80 | 82 |
| 2017 | 94 | 112 |
| 2018 | 94 | 87 |
| 2019 | 90 | 68 |
| 2020 | 78 | 64 |
| 2021 | 56 | 51 |
| 2022 | 55 | 34 |
| 2023 | 38 | 27 |
| 2024 | 35 | 25 |
| 2025 | 28 | 29 |
| 2026 | 18 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Aquarium system with controlable light and methods22 Sep 2026US 12,740,548 B2Spectrum Brands, Inc.
- Thermal light emitting device1 Sep 2026US 12,723,737 B24K-Mems SA
- Volumetric LED alignment aid for sighting device1 Sep 2026US 12,723,841 B2
- Organic light-emitting apparatus having light-emitting layers including different material respectively, and display apparatus, lighting apparatus, electronic apparatus, moving object, and image-forming apparatus including organic light-emitting apparatus18 Aug 2026US 12,713,762 B2Canon Kabushiki Kaisha
- Luminaire optical device color compensation28 Jul 2026US 12,692,999 B2Robe Lighting s.r.o.
- Compact laser beam homogenizer17 Sep 2026US 2026/0276177 A1LaserWorld AG
- Laser-phosphor engine with rotating converter20 Aug 2026US 2026/0243398 A1Signify Holding B. V.
- Light source apparatus and projection-type image display apparatus20 Aug 2026US 2026/0244086 A1Panasonic Projector & Display Corporation
- Light-emitting device, integrated light-emitting device, and light-emitting module16 Jul 2026US 2026/0206654 A1Nichia Corporation
- Emergency pedestal with lighting projection device2 Jul 2026US 2026/0185670 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Illumination devices using natural light LEDs1,018US 8,992,042 B2Halma Holdings, Inc. · 2015
- Lighting units429US 5,890,794 A1999
- Micro assembled LED displays and lighting elements254US 9,520,537 B2X-Celeprint Limited · 2016
- Flashlight for covert applications247US 5,161,879 A1992
- Light absorption and filtering properties of vertically oriented semiconductor nano wires246US 9,000,353 B2President and Fellows of Harvard College · 2015