H05B 41/2813
Arrangements for protecting lamps or circuits against abnormal operating conditions
Official title: {Arrangements for protecting lamps or circuits against abnormal operating conditions}
H05B41/2813 (Arrangements for protecting lamps or circuits against abnormal operating conditions) appears on 40 US grants and 28 published applications in this corpus.
Search patents in H05B- Granted patents
- 40
- Published applications
- 28
- Assignees
- 37
- Inventors
- 79
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 2 |
| 2004 | 3 | 5 |
| 2005 | 2 | 4 |
| 2006 | 4 | 4 |
| 2007 | 3 | 2 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 2 | 1 |
| 2019 | 2 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lamp monitoring and control system and method26 May 2026US 12,641,701 B2Smartcap Innovations, LLC
- Systems and methods for extending a lifespan of an excimer lamp18 Jun 2019US 10,327,316 B2The Boeing Company
- Quick-action leakage detection protection circuit having regular self-checking function19 Feb 2019US 10,209,287 B2Wenzhou Van-Sheen Electric Appliance Co., Ltd.
- Electrical ballast and driving method thereof11 Dec 2018US 10,152,068 B1Delta Electronics, Inc.
- Systems and methods for extending a lifespan of an excimer lamp2 Oct 2018US 10,091,865 B1The Boeing Company
- Power supply circuit and lamp10 Sep 2026US 2026/0271145 A1Filament Lighting LLC
- Lamp monitoring and control system and method7 Dec 2023US 2023/0397318 A1Smartcap Innovations, LLC
- Systems and methods for extending a lifespan of an excimer lamp16 May 2019US 2019/0150254 A1The Boeing Company
- Quick-action leakage detection protection circuit having regular self-checking function1 Mar 2018US 2018/0059163 A1Wenzhou Van-shee
- Multiple pulse width modulation waveforms for plasma lamp6 Mar 2014US 2014/0062298 A1Topanga Technologies, Inc.
Most cited
By later US patents
- Apparatus for controlling the brightness of a magnetron-excited lamp63US 5,438,242 AFusion Systems Corporation · 1995
- Electrodeless low-pressure mercury vapour discharge lamp33US 5,239,238 AU. S. Philips Corporation · 1993
- Protection for external electrode fluorescent lamp system27US 7,126,289 B2O2 Micro, Inc. · 2006
- Acoustic resonance arc stabilization arrangement in a discharge lamp25US 5,306,987 AGeneral Electric Company · 1994
- Electrodeless self-ballasted fluorescent lamp and discharge lamp operating device24US 6,977,472 B2Matsushita Electric Industrial Co., Ltd. · 2005