F21W 2131/40
Lighting for industrial, commercial, recreational or military use
F21W2131/40 (Lighting for industrial, commercial, recreational or military use) appears on 2,796 US grants and 2,606 published applications in this corpus.
Search patents in F21W- Granted patents
- 2,796
- Published applications
- 2,606
- Assignees
- 1,139
- Inventors
- 3,817
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 11 | 0 |
| 1978 | 10 | 0 |
| 1979 | 8 | 0 |
| 1980 | 18 | 0 |
| 1981 | 12 | 0 |
| 1982 | 6 | 0 |
| 1983 | 13 | 0 |
| 1984 | 11 | 0 |
| 1985 | 21 | 0 |
| 1986 | 15 | 0 |
| 1987 | 19 | 0 |
| 1988 | 25 | 0 |
| 1989 | 24 | 0 |
| 1990 | 27 | 0 |
| 1991 | 31 | 0 |
| 1992 | 24 | 0 |
| 1993 | 30 | 0 |
| 1994 | 27 | 0 |
| 1995 | 20 | 0 |
| 1996 | 25 | 0 |
| 1997 | 25 | 0 |
| 1998 | 37 | 0 |
| 1999 | 44 | 0 |
| 2000 | 46 | 0 |
| 2001 | 62 | 16 |
| 2002 | 50 | 69 |
| 2003 | 68 | 57 |
| 2004 | 46 | 58 |
| 2005 | 51 | 79 |
| 2006 | 55 | 85 |
| 2007 | 46 | 87 |
| 2008 | 53 | 105 |
| 2009 | 64 | 102 |
| 2010 | 71 | 88 |
| 2011 | 64 | 112 |
| 2012 | 84 | 93 |
| 2013 | 71 | 116 |
| 2014 | 99 | 127 |
| 2015 | 105 | 172 |
| 2016 | 104 | 136 |
| 2017 | 128 | 118 |
| 2018 | 137 | 149 |
| 2019 | 155 | 154 |
| 2020 | 156 | 153 |
| 2021 | 138 | 127 |
| 2022 | 110 | 95 |
| 2023 | 103 | 84 |
| 2024 | 108 | 93 |
| 2025 | 68 | 61 |
| 2026 | 60 | 70 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F21W 2131/406For theatres, stages or film studiosIndexing code1,350
- F21W 2131/401For swimming poolsIndexing code396
- F21W 2131/405For shop-windows or displaysIndexing code304
- F21W 2131/402For working placesIndexing code243
- F21W 2131/403For machinesIndexing code70
- F21W 2131/407For indoor arenasIndexing code44
- F21W 2131/411For inspection of the interior of hollow structuresIndexing code38
- F21W 2131/409For furnaces or kilnsIndexing code3
Recent patents
- Caulk nozzle lighting system6 Oct 2026US 12,752,298 B2
- Light fixture including a three-bar frame solver for shutter control6 Oct 2026US 12,753,906 B2Electronic Theatre Controls, Inc.
- Solar pool lamp6 Oct 2026US 12,753,910 B2Shenzhen Maining Innovation Technology Co., Ltd.
- Portable charger for recreational flying objects and method of use22 Sep 2026US 12,742,526 B2
- Self-calibration method for positioning of light fixture and light fixture15 Sep 2026US 12,736,206 B2Guangzhou Haoyang Electronic Co., Ltd.
- Stage light fixture having multi-colored zone effect element8 Oct 2026US 2026/0309291 A1Guangzhou Haoyang Electronic Co., Ltd.
- Lighting arrangement comprising a light collimating optical element and array of light emitting diodes8 Oct 2026US 2026/0310003 A1Signify Holding B. V.
- Lighted flooring1 Oct 2026US 2026/0298439 A1
- Light fixture including a three-bar frame solver for shutter control1 Oct 2026US 2026/0298444 A1Electronic Theatre Controls, Inc.
- Glare-reducing lighting system for an indoor pickleball court24 Sep 2026US 2026/0287132 A1
Most cited
By later US patents
- Systems and methods for generating and modulating illumination conditions693US 7,014,336 B1Color Kinetics Incorporated · 2006
- Lighting methods and systems641US 7,178,941 B2Color Kinetics Incorporated · 2007
- Multicolored LED lighting method and apparatus581US 6,788,011 B2Color Kinetics Incorporated · 2004
- Multicolored LED lighting method and apparatus550US 6,806,659 B1Color Kinetics Incorporated · 2004
- Adaptive and interactive scene illumination497US 7,227,611 B2The Boeing Company · 2007