H02M 1/4291
By using a buck converter to switch the input current
Official title: {by using a Buck converter to switch the input current}
H02M1/4291 (By using a buck converter to switch the input current) appears on 137 US grants and 155 published applications in this corpus.
Search patents in H02M- Granted patents
- 137
- Published applications
- 155
- Assignees
- 102
- Inventors
- 278
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 6 |
| 2006 | 1 | 1 |
| 2007 | 2 | 1 |
| 2008 | 2 | 2 |
| 2009 | 2 | 0 |
| 2010 | 2 | 6 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 3 | 10 |
| 2014 | 6 | 12 |
| 2015 | 10 | 17 |
| 2016 | 15 | 11 |
| 2017 | 8 | 11 |
| 2018 | 9 | 14 |
| 2019 | 17 | 10 |
| 2020 | 9 | 10 |
| 2021 | 7 | 8 |
| 2022 | 12 | 13 |
| 2023 | 6 | 3 |
| 2024 | 4 | 6 |
| 2025 | 8 | 5 |
| 2026 | 2 | 6 |
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
- LED power control methods and apparatus433US 7,256,554 B2Color Kinetics Incorporated · 2007
- LED-based lighting network power control methods and apparatus390US 7,233,115 B2Color Kinetics Incorporated · 2007
- Power factor correction control methods and apparatus240US 7,358,706 B2Philips Solid-State Lighting Solutions, Inc. · 2008
- Power supply for a high intensity discharge or fluorescent lamp214US 4,277,728 AStevens Luminoptics · 1981
- LED power control methods and apparatus182US 7,557,521 B2Philips Solid-State Lighting Solutions, Inc. · 2009