F21V 25/04
Breaking the electric circuit
Official title: breaking the electric circuit
F21V25/04 (Breaking the electric circuit) appears on 255 US grants and 206 published applications in this corpus.
Search patents in F21V- Granted patents
- 255
- Published applications
- 206
- Assignees
- 132
- Inventors
- 454
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 8 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 3 |
| 2003 | 4 | 3 |
| 2004 | 4 | 5 |
| 2005 | 2 | 6 |
| 2006 | 3 | 4 |
| 2007 | 2 | 1 |
| 2008 | 4 | 1 |
| 2009 | 0 | 9 |
| 2010 | 3 | 3 |
| 2011 | 4 | 8 |
| 2012 | 4 | 12 |
| 2013 | 8 | 11 |
| 2014 | 14 | 9 |
| 2015 | 7 | 11 |
| 2016 | 10 | 25 |
| 2017 | 23 | 24 |
| 2018 | 24 | 19 |
| 2019 | 19 | 14 |
| 2020 | 21 | 15 |
| 2021 | 12 | 10 |
| 2022 | 9 | 4 |
| 2023 | 3 | 3 |
| 2024 | 5 | 3 |
| 2025 | 3 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- LED lamp and misuse warning module thereof29 Sep 2026US 12,747,836 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Electrical unit or light for a DC network21 Jul 2026US 12,690,101 B2Zumtobel Lighting GmbH
- LED tube lamp29 Jul 2025US 12,372,209 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Retrofit LED tube with safety switch8 Jul 2025US 12,352,420 B2Signify Holding B. V.
- LED tube lamp1 Apr 2025US 12,264,789 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Filament lamp with temperature sensing30 Apr 2026US 2026/0122737 A1Signify Holding B. V.
- Method for controlling power supply of led lamp related applications30 Oct 2025US 2025/0334234 A1Jiaxing Super Lighting Electric Appliance Co., Ltd
- Electrical unit or light for a dc network27 Mar 2025US 2025/0106962 A1Zumtobel Lighting GmbH
- Led tube lamp11 Jul 2024US 2024/0230038 A1Jiaxing Super Lighting Electric Appliance Co., Ltd
- LED lamp and misuse warning module thereof21 Mar 2024US 2024/0093841 A1Jiaxing Super Lighting Electric Appliance Co., Ltd
Most cited
By later US patents
- Lighting apparatus161US 7,329,024 B2Permlight Products, Inc. · 2008
- Apparatus for irradiating substances curable by radiation159US 4,298,806 AESPE Fabrik Pharmazeutischer Praparate GmbH · 1981
- Wall receptacle recessed box contained light intensity on/off controlled night light system126US 4,546,419 A1985
- Heat shield for agricultural light bulb82US 6,247,830 B12001
- Luminaire with automatic voltage disconnect80US 4,980,809 AGeneral Electric Company · 1990