F21S 8/031
The device consisting essentially only of a light source holder with an
Official title: {the device consisting essentially only of a light source holder with an exposed light source, e.g. a fluorescent tube}
F21S8/031 (The device consisting essentially only of a light source holder with an) appears on 76 US grants and 78 published applications in this corpus.
Search patents in F21S- Granted patents
- 76
- Published applications
- 78
- Assignees
- 54
- Inventors
- 161
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 3 |
| 2004 | 1 | 3 |
| 2005 | 2 | 0 |
| 2006 | 1 | 4 |
| 2007 | 4 | 4 |
| 2008 | 1 | 2 |
| 2009 | 3 | 4 |
| 2010 | 0 | 6 |
| 2011 | 3 | 4 |
| 2012 | 2 | 2 |
| 2013 | 8 | 14 |
| 2014 | 6 | 4 |
| 2015 | 1 | 6 |
| 2016 | 2 | 2 |
| 2017 | 3 | 1 |
| 2018 | 2 | 4 |
| 2019 | 5 | 2 |
| 2020 | 7 | 4 |
| 2021 | 4 | 2 |
| 2022 | 2 | 2 |
| 2023 | 3 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Connecting terminal assembly for a grow light and grow light mechanism18 Jun 2026US 2026/0168662 A1Sinowell (Shanghai) Co., Ltd.
- Light fixture assembly, light fixture system and light fixture module7 May 2026US 2026/0126156 A1Savant Technologies LLC
- Height adjustable ceiling mount for linear light fixture21 Nov 2024US 2024/0384862 A1Diem GmbH
- Plug-in lamp24 Nov 2022US 2022/0373169 A1
Most cited
By later US patents
- LED lamp tube76US 7,887,226 B2Ledtech Electronics Corp. · 2011
- Structure for a high efficiency and water-proof lighting device55US 7,303,310 B2Opto Tech Corporation · 2007
- LED lamp tube44US 7,441,922 B2Ledtech Electronics Corp. · 2008
- Explosion-proof fluorescent light fixture40US 4,435,744 APauluhn Electric Manufacturing Co., Inc. · 1984
- Multi-lamp fluorescent light fixture40US 6,652,119 B12003