H05B 45/345
Current stabilisation
Official title: Current stabilisation; Maintaining constant current
H05B45/345 (Current stabilisation) appears on 722 US grants and 820 published applications in this corpus.
Search patents in H05B- Granted patents
- 722
- Published applications
- 820
- Assignees
- 416
- Inventors
- 1,399
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 2 |
| 2002 | 1 | 2 |
| 2003 | 2 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 6 |
| 2006 | 3 | 10 |
| 2007 | 6 | 14 |
| 2008 | 11 | 6 |
| 2009 | 2 | 20 |
| 2010 | 11 | 23 |
| 2011 | 17 | 28 |
| 2012 | 21 | 19 |
| 2013 | 18 | 22 |
| 2014 | 17 | 28 |
| 2015 | 31 | 39 |
| 2016 | 35 | 40 |
| 2017 | 41 | 46 |
| 2018 | 52 | 47 |
| 2019 | 51 | 63 |
| 2020 | 50 | 64 |
| 2021 | 63 | 77 |
| 2022 | 81 | 61 |
| 2023 | 68 | 52 |
| 2024 | 48 | 56 |
| 2025 | 48 | 47 |
| 2026 | 36 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Lighting methods and systems641US 7,178,941 B2Color Kinetics Incorporated · 2007
- AC powered light emitting diode array circuits for use in traffic signal displays305US 5,936,599 A1999
- LED illumination apparatus and card-type LED illumination source287US 6,949,772 B2Matsushita Electric Industrial Co., Ltd. · 2005
- LED lighting system198US 7,307,391 B2LED Smart Inc. · 2007
- Method and apparatus for controlling driving current of illumination source in a display system139US 7,057,359 B2Au Optronics Corporation · 2006