F21V 23/009
The casing being inside the housing of the lighting device
Official title: {the casing being inside the housing of the lighting device}
F21V23/009 (The casing being inside the housing of the lighting device) appears on 904 US grants and 1,018 published applications in this corpus.
Search patents in F21V- Granted patents
- 904
- Published applications
- 1,018
- Assignees
- 363
- Inventors
- 1,479
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 3 |
| 2008 | 0 | 3 |
| 2009 | 3 | 12 |
| 2010 | 5 | 7 |
| 2011 | 8 | 35 |
| 2012 | 16 | 45 |
| 2013 | 34 | 56 |
| 2014 | 43 | 54 |
| 2015 | 50 | 94 |
| 2016 | 74 | 101 |
| 2017 | 86 | 69 |
| 2018 | 65 | 72 |
| 2019 | 87 | 105 |
| 2020 | 136 | 109 |
| 2021 | 81 | 79 |
| 2022 | 62 | 41 |
| 2023 | 55 | 37 |
| 2024 | 37 | 29 |
| 2025 | 31 | 27 |
| 2026 | 26 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Luminaire having a back plate with opening for relasably attached driver8 Oct 2026US 2026/0309318 A1Signify Holding B. V.
- Led device and led light fixture8 Oct 2026US 2026/0309321 A1Shanghai Weili Advanced Electronic Technology Co., Ltd.
- Detachable illumination module1 Oct 2026US 2026/0295696 A1
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Most cited
By later US patents
- Light tube and power supply circuit300US 7,049,761 B2Altair Engineering, Inc. · 2006
- LED lighting device for replacing fluorescent tubes268US 7,510,299 B2Altair Engineering, Inc. · 2009
- Light emitting diode recessed light fixture164US 7,959,332 B2Cooper Technologies Company · 2011
- Electronic lighting device and method for manufacturing same119US 8,789,986 B22014
- Light tube and power supply circuit116US 8,247,985 B2iLumisys, Inc. · 2012