H05B 39/00
Circuit arrangements or apparatus for operating incandescent light sources
Official title: Circuit arrangements or apparatus for operating incandescent light sources (structurally associated with the incandescent lamps H01K1/62)
H05B39/00 (Circuit arrangements or apparatus for operating incandescent light sources) appears on 1,754 US grants and 1,166 published applications in this corpus.
Search patents in H05B- Granted patents
- 1,754
- Published applications
- 1,166
- Assignees
- 651
- Inventors
- 2,235
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 13 | 0 |
| 1978 | 16 | 0 |
| 1979 | 11 | 0 |
| 1980 | 14 | 0 |
| 1981 | 16 | 0 |
| 1982 | 15 | 0 |
| 1983 | 19 | 0 |
| 1984 | 7 | 0 |
| 1985 | 26 | 0 |
| 1986 | 26 | 0 |
| 1987 | 24 | 0 |
| 1988 | 19 | 0 |
| 1989 | 29 | 0 |
| 1990 | 33 | 0 |
| 1991 | 43 | 0 |
| 1992 | 29 | 0 |
| 1993 | 31 | 0 |
| 1994 | 32 | 0 |
| 1995 | 34 | 0 |
| 1996 | 33 | 0 |
| 1997 | 29 | 0 |
| 1998 | 45 | 0 |
| 1999 | 49 | 0 |
| 2000 | 48 | 0 |
| 2001 | 45 | 6 |
| 2002 | 47 | 43 |
| 2003 | 40 | 53 |
| 2004 | 36 | 40 |
| 2005 | 27 | 85 |
| 2006 | 52 | 70 |
| 2007 | 58 | 66 |
| 2008 | 43 | 72 |
| 2009 | 39 | 54 |
| 2010 | 57 | 58 |
| 2011 | 47 | 50 |
| 2012 | 49 | 35 |
| 2013 | 46 | 40 |
| 2014 | 43 | 49 |
| 2015 | 49 | 57 |
| 2016 | 62 | 53 |
| 2017 | 54 | 51 |
| 2018 | 57 | 51 |
| 2019 | 54 | 44 |
| 2020 | 48 | 59 |
| 2021 | 43 | 35 |
| 2022 | 29 | 25 |
| 2023 | 29 | 31 |
| 2024 | 28 | 16 |
| 2025 | 14 | 18 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Load control device for high-efficiency loads29 Sep 2026US 12,750,930 B2Lutron Technology Company LLC
- Image processing device configured to regenerate timestamp and electronic device including the same15 Sep 2026US 12,739,534 B2Samsung Electronics Co., Ltd.
- Load control device having an overcurrent protection circuit4 Aug 2026US 12,700,792 B2Lutron Technology Company LLC
- Two-wire dimmer with improved zero-cross detention14 Jul 2026US 12,684,663 B2Lutron Technology Company LLC
- Predictive maintenance of light-emitting elements19 May 2026US 12,635,060 B2Trinamix GmbH
- Load Control Device Having a Controllable Filter Circuit2 Jul 2026US 2026/0190191 A1Lutron Technology Company LLC
- Filament lamp with temperature sensing30 Apr 2026US 2026/0122737 A1Signify Holding B. V.
- Ultraviolet cathodluminescent systems and methods26 Feb 2026US 2026/0059622 A1NS Nanotech, Inc.
- Two-part load control system mountable to a single electrical wallbox5 Feb 2026US 2026/0040420 A1Lutron Technology Company LLC
- Load control device having a capacitive touch surface29 Jan 2026US 2026/0031813 A1Lutron Technology Company LLC
Most cited
By later US patents
- Wallbox-mountable switch and dimmer1,519US 5,359,231 ALutron Electronics Co., Inc. · 1994
- Methods and apparatus for providing power to lighting devices771US 7,038,399 B2Color Kinetics Incorporated · 2006
- Control system for automotive vehicle headlamps and other vehicle equipment626US 5,537,003 AGentex Corporation · 1996
- Lighting control device508US 5,248,919 ALutron Electronics Co., Inc. · 1993
- Automobile headlamp and running light control system478US 5,666,028 AGentex Corporation · 1997