H05B 41/2853
Against abnormal power supply conditions
Official title: {against abnormal power supply conditions}
H05B41/2853 (Against abnormal power supply conditions) appears on 137 US grants and 80 published applications in this corpus.
Search patents in H05B- Granted patents
- 137
- Published applications
- 80
- Assignees
- 104
- Inventors
- 222
- Latest grant
- 14 Jan 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 2 |
| 2003 | 6 | 10 |
| 2004 | 6 | 6 |
| 2005 | 7 | 8 |
| 2006 | 7 | 4 |
| 2007 | 7 | 10 |
| 2008 | 1 | 7 |
| 2009 | 10 | 7 |
| 2010 | 3 | 6 |
| 2011 | 5 | 3 |
| 2012 | 5 | 4 |
| 2013 | 4 | 6 |
| 2014 | 5 | 0 |
| 2015 | 4 | 2 |
| 2016 | 1 | 1 |
| 2017 | 2 | 0 |
| 2018 | 2 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Single stage power converter with power factor correction14 Jan 2020US 10,536,083 B2Dialog Semiconductor GmbH
- Single-stage power converter with power factor correction16 Oct 2018US 10,103,636 B1Dialog Semiconductor GmbH
- Electronic circuit for protecting a load against over-voltage13 Feb 2018US 9,893,510 B2Telefonaktiebolaget LM Ericsson (publ)
- Battery backup system for LED luminaire26 Sep 2017US 9,775,214 B2GE Lighting Solutions, LLC
- Lighting power supply24 Jan 2017US 9,553,482 B2Tridonic US Ltd
- Power supply circuit and lamp10 Sep 2026US 2026/0271145 A1Filament Lighting LLC
- Single-stage power converter with power factor correction21 Mar 2019US 2019/0089256 A1Dialog Semiconductor GmbH
- Emergency lighting system5 Jul 2018US 2018/0192502 A1Barron Lighting Group, Inc.
- Battery backup system for led luminaire30 Jun 2016US 2016/0192455 A1GE Lighting Solutions, LLC
- Electronic circuit for protecting a load against over-voltage12 Nov 2015US 2015/0326005 A1Telefonaktiebolaget'l M Ericsson (Publ)
Most cited
By later US patents
- High efficiency two stage inverter210US 7,218,541 B2Dell Products L. P. · 2007
- DC operated electronic ballast for fluorescent light166US 5,751,120 ASiemens Stromberg-Carlson · 1998
- Lamp control circuit having a brightness condition controller having 2.sup. n .sup.rd and 4.sup.th current paths103US 5,818,172 ASamsung Electronics Co., Ltd. · 1998
- Transformer wiring method and apparatus for fluorescent lighting98US 7,746,003 B2Orion Energy Systems, Inc. · 2010
- Lighting system for normal and emergency operation of high intensity discharge lamps87US 4,751,398 AThe Bodine Company, Inc. · 1988