F21V 23/04
The elements being switches
Official title: the elements being switches (safety devices F21V25/00)
F21V23/04 (The elements being switches) appears on 7,253 US grants and 7,754 published applications in this corpus.
Search patents in F21V- Granted patents
- 7,253
- Published applications
- 7,754
- Assignees
- 2,660
- Inventors
- 11,031
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 16 | 0 |
| 1986 | 12 | 0 |
| 1987 | 11 | 0 |
| 1988 | 20 | 0 |
| 1989 | 22 | 0 |
| 1990 | 19 | 0 |
| 1991 | 26 | 0 |
| 1992 | 25 | 0 |
| 1993 | 28 | 0 |
| 1994 | 23 | 0 |
| 1995 | 37 | 0 |
| 1996 | 27 | 0 |
| 1997 | 36 | 0 |
| 1998 | 39 | 0 |
| 1999 | 40 | 0 |
| 2000 | 59 | 0 |
| 2001 | 82 | 24 |
| 2002 | 85 | 107 |
| 2003 | 93 | 123 |
| 2004 | 95 | 126 |
| 2005 | 85 | 174 |
| 2006 | 87 | 151 |
| 2007 | 97 | 145 |
| 2008 | 88 | 179 |
| 2009 | 105 | 179 |
| 2010 | 108 | 243 |
| 2011 | 118 | 208 |
| 2012 | 177 | 229 |
| 2013 | 181 | 252 |
| 2014 | 176 | 305 |
| 2015 | 261 | 395 |
| 2016 | 317 | 445 |
| 2017 | 390 | 565 |
| 2018 | 466 | 585 |
| 2019 | 623 | 550 |
| 2020 | 602 | 570 |
| 2021 | 527 | 531 |
| 2022 | 550 | 414 |
| 2023 | 465 | 382 |
| 2024 | 389 | 319 |
| 2025 | 348 | 315 |
| 2026 | 235 | 238 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Method of operating a marine lighting system6 Oct 2026US 12,752,890 B2Ocean LED Marine Limited
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- Emitter assembly for a lighting device6 Oct 2026US 12,753,886 B2Lutron Technology Company LLC
- Illuminated control module for a motor vehicle6 Oct 2026US 12,753,904 B2Dav
- Portable lighting device with a flexible and deployable led lighting element8 Oct 2026US 2026/0309287 A1Promier Products Inc.
- Candle Warming Lamp8 Oct 2026US 2026/0309302 A1
- Luminaire provided with a uv lighting module8 Oct 2026US 2026/0309320 A1Signify Holding B. V.
- Sink lighting system8 Oct 2026US 2026/0309322 A1
- Motion-activated illumination system for apparel and objects8 Oct 2026US 2026/0313770 A1
Most cited
By later US patents
- Systems and methods for generating and modulating illumination conditions693US 7,014,336 B1Color Kinetics Incorporated · 2006
- Data delivery track527US 6,720,745 B2Color Kinetics Incorporated · 2004
- Methods and apparatus for generating and modulating illumination conditions461US 7,255,457 B2Color Kinetics Incorporated · 2007
- Light-emitting diode based products436US 7,064,498 B2Color Kinetics Incorporated · 2006
- LED luminaire with electrically adjusted color balance using photodetector435US 6,495,964 B1Koninklijke Philips Electronics N. V. · 2002