H05B 39/041
The light-intensity of the source
Official title: {the light-intensity of the source (H05B39/08 takes precedence)}
H05B39/041 (The light-intensity of the source) appears on 820 US grants and 617 published applications in this corpus.
Search patents in H05B- Granted patents
- 820
- Published applications
- 617
- Assignees
- 376
- Inventors
- 1,156
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 1 | 0 |
| 1985 | 6 | 0 |
| 1986 | 9 | 0 |
| 1987 | 8 | 0 |
| 1988 | 6 | 0 |
| 1989 | 13 | 0 |
| 1990 | 16 | 0 |
| 1991 | 21 | 0 |
| 1992 | 10 | 0 |
| 1993 | 12 | 0 |
| 1994 | 10 | 0 |
| 1995 | 14 | 0 |
| 1996 | 17 | 0 |
| 1997 | 12 | 0 |
| 1998 | 15 | 0 |
| 1999 | 16 | 0 |
| 2000 | 22 | 0 |
| 2001 | 19 | 4 |
| 2002 | 24 | 16 |
| 2003 | 20 | 29 |
| 2004 | 14 | 21 |
| 2005 | 16 | 38 |
| 2006 | 22 | 29 |
| 2007 | 27 | 30 |
| 2008 | 24 | 40 |
| 2009 | 20 | 29 |
| 2010 | 26 | 26 |
| 2011 | 29 | 27 |
| 2012 | 28 | 16 |
| 2013 | 24 | 23 |
| 2014 | 25 | 25 |
| 2015 | 29 | 35 |
| 2016 | 26 | 26 |
| 2017 | 31 | 32 |
| 2018 | 38 | 36 |
| 2019 | 35 | 27 |
| 2020 | 33 | 40 |
| 2021 | 25 | 21 |
| 2022 | 12 | 13 |
| 2023 | 16 | 14 |
| 2024 | 11 | 8 |
| 2025 | 8 | 11 |
| 2026 | 5 | 1 |
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
- Constant-power supply apparatus and solar simulation facility7 Apr 2026US 12,597,886 B2ShenZhen Sunny Xiao Technology Co., Ltd.
- Ultraviolet cathodluminescent systems and methods26 Feb 2026US 2026/0059622 A1NS Nanotech, Inc.
- Load Control Device for High-Efficiency Loads9 Oct 2025US 2025/0318027 A1Lutron Technology Company LLC
- Load Control Device for High-Efficiency Loads9 Oct 2025US 2025/0318028 A1Lutron Technology Company LLC
- Load control device having a capacitive touch surface25 Sep 2025US 2025/0298479 A1Lutron Technology Company LLC
- Overcurrent protection for a load control device4 Sep 2025US 2025/0279646 A1Lutron Technology Company LLC
Most cited
By later US patents
- 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
- Automobile headlamp and running light control system478US 5,666,028 AGentex Corporation · 1997
- Methods and apparatus for providing power to lighting devices365US 7,352,138 B2Philips Solid-State Lighting Solutions, Inc. · 2008
- Photosensor and control system for dimming lighting fixtures to reduce power consumption261US 6,583,573 B2Rensselaer Polytechnic Institute · 2003