F21V 9/40
Elements for modifying spectral properties, polarisation or intensity of the light emitted
Official title: with provision for controlling spectral properties, e.g. colour, or intensity
F21V9/40 (Elements for modifying spectral properties, polarisation or intensity of the light emitted) appears on 848 US grants and 828 published applications in this corpus.
Search patents in F21V- Granted patents
- 848
- Published applications
- 828
- Assignees
- 399
- Inventors
- 1,516
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 1 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 12 | 0 |
| 2001 | 10 | 1 |
| 2002 | 4 | 10 |
| 2003 | 17 | 16 |
| 2004 | 12 | 5 |
| 2005 | 5 | 13 |
| 2006 | 10 | 11 |
| 2007 | 3 | 6 |
| 2008 | 5 | 19 |
| 2009 | 10 | 18 |
| 2010 | 13 | 18 |
| 2011 | 11 | 25 |
| 2012 | 15 | 28 |
| 2013 | 22 | 51 |
| 2014 | 33 | 52 |
| 2015 | 31 | 64 |
| 2016 | 59 | 41 |
| 2017 | 40 | 68 |
| 2018 | 59 | 48 |
| 2019 | 63 | 48 |
| 2020 | 50 | 32 |
| 2021 | 42 | 47 |
| 2022 | 44 | 55 |
| 2023 | 41 | 38 |
| 2024 | 51 | 48 |
| 2025 | 36 | 34 |
| 2026 | 29 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Laser-phosphor based stage-lighting fixture providing CTT control29 Sep 2026US 12,747,837 B2Signify Holding B. V.
- System and method for generating a single light beam from a plurality of light sources29 Sep 2026US 12,748,315 B2Advanced Entertainment Technologies, Inc.
- Manual frost mechanism8 Sep 2026US 12,729,834 B2Robe Lighting s.r.o.
- Optical element and lighting device1 Sep 2026US 12,723,739 B2Japan Display Inc.
- Energy augmentation structures for use with energy emitters and collectors11 Aug 2026US 12,702,861 B2Immunolight, LLC
- Lighting device24 Sep 2026US 2026/0287147 A1Signify Holding B. V.
- Compact laser beam homogenizer17 Sep 2026US 2026/0276177 A1LaserWorld AG
- Clouds for artificial skylights and windows3 Sep 2026US 2026/0258918 A1Signify Holding B. V.
- 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
Most cited
By later US patents
- Computer controlled lighting system having automatically variable position, color, intensity and beam divergence386US 4,392,187 AVari-Lite, Inc. · 1983
- Non-incandescent lightbulb package using light emitting diodes347US 6,504,301 B1Lumileds Lighting U.S., LLC · 2003
- High intensity lighting projectors319US 5,282,121 AVari-Lite, Inc. · 1994
- Multicolor led lamp bulb for underwater pool lights316US 6,184,628 B22001
- Hand-carried traffic control light160US 5,622,423 A1997