F21W 2131/105
Of arenas or the like
Official title: of arenas or the like
F21W2131/105 (Of arenas or the like) appears on 288 US grants and 235 published applications in this corpus.
Search patents in F21W- Granted patents
- 288
- Published applications
- 235
- Assignees
- 111
- Inventors
- 351
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 1 |
| 2002 | 5 | 3 |
| 2003 | 2 | 3 |
| 2004 | 1 | 1 |
| 2005 | 3 | 3 |
| 2006 | 1 | 22 |
| 2007 | 5 | 5 |
| 2008 | 5 | 9 |
| 2009 | 11 | 15 |
| 2010 | 12 | 17 |
| 2011 | 12 | 15 |
| 2012 | 18 | 10 |
| 2013 | 18 | 13 |
| 2014 | 9 | 5 |
| 2015 | 7 | 13 |
| 2016 | 5 | 5 |
| 2017 | 13 | 12 |
| 2018 | 14 | 9 |
| 2019 | 20 | 11 |
| 2020 | 14 | 14 |
| 2021 | 14 | 17 |
| 2022 | 13 | 2 |
| 2023 | 7 | 7 |
| 2024 | 5 | 12 |
| 2025 | 7 | 7 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lens for retrofitting a lighting system with LED lights21 Jul 2026US 12,690,120 B2
- Crossarm retrofit system21 Apr 2026US 12,607,333 B2Signify Holding B. V.
- Circuit, circuit board, and heat sink assembly for retrofitting a lighting system with LED lights21 Apr 2026US 12,610,450 B2
- Self-contained ballast driver for retrofitting a lighting system with LED lights31 Mar 2026US 12,593,393 B2
- Apparatus, method, and system for improved turf or grass growth25 Nov 2025US 12,478,004 B2
- Apparatus, method, and system for mobile, temporary, or supplemental lighting3 Sep 2026US 2026/0258916 A1Musco Corporation
- Extended knuckle, snout, and aiming device for retrofitting a lighting system with led lights26 Mar 2026US 2026/0089832 A1Musco Corporation
- Fixture implementation system and method19 Feb 2026US 2026/0050701 A1M3 Innovation, LLC
- Lens for retrofitting a lighting system with led lights5 Feb 2026US 2026/0036288 A1Musco Corporation
- Led luminaire for retrofitting a lighting system with led lights11 Dec 2025US 2025/0377092 A1Musco Corporation
Most cited
By later US patents
- Modular lighting systems209US 8,232,745 B2Digital Lumens Incorporated · 2012
- Light-directing LED apparatus98US 7,618,163 B2Ruud Lighting, Inc. · 2009
- Mobile lighting system85US 5,207,747 AMusco Corporation · 1993
- Portable stand apparatus for electric flood lights82US 4,228,489 A1980
- Mobile lighting fixture, method and boom82US 4,423,471 AMycro-Group Company · 1983