H02M 1/4225
Using a non-isolated boost converter
Official title: {using a non-isolated boost converter}
H02M1/4225 (Using a non-isolated boost converter) appears on 1,940 US grants and 2,055 published applications in this corpus.
Search patents in H02M- Granted patents
- 1,940
- Published applications
- 2,055
- Assignees
- 688
- Inventors
- 3,160
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 12 | 0 |
| 1995 | 14 | 0 |
| 1996 | 18 | 0 |
| 1997 | 20 | 0 |
| 1998 | 23 | 0 |
| 1999 | 21 | 0 |
| 2000 | 27 | 0 |
| 2001 | 31 | 5 |
| 2002 | 19 | 16 |
| 2003 | 12 | 17 |
| 2004 | 21 | 24 |
| 2005 | 19 | 47 |
| 2006 | 32 | 28 |
| 2007 | 21 | 30 |
| 2008 | 30 | 48 |
| 2009 | 24 | 44 |
| 2010 | 32 | 75 |
| 2011 | 43 | 85 |
| 2012 | 74 | 92 |
| 2013 | 74 | 126 |
| 2014 | 92 | 131 |
| 2015 | 115 | 129 |
| 2016 | 131 | 110 |
| 2017 | 116 | 103 |
| 2018 | 118 | 94 |
| 2019 | 122 | 82 |
| 2020 | 88 | 100 |
| 2021 | 85 | 102 |
| 2022 | 106 | 120 |
| 2023 | 90 | 119 |
| 2024 | 83 | 132 |
| 2025 | 129 | 115 |
| 2026 | 64 | 81 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Conversion control circuit for adjusting PFC output voltage and control method thereof1 Sep 2026US 12,726,114 B2Richtek Technology Corporation
- Power supply circuit8 Oct 2026US 2026/0312511 A1Fuji Electric Co., Ltd.
- Switching control circuit and power factor correction circuit24 Sep 2026US 2026/0291377 A1Fuji Electric Co., Ltd.
- On-board charger and operating method thereof24 Sep 2026US 2026/0291389 A1Delta Electronics, Inc.
- Power factor correction circuit17 Sep 2026US 2026/0280418 A1DRP Holdings LLC
- Method for providing sinusoidal phase currents with controlling and charging3 Sep 2026US 2026/0261201 A1
Most cited
By later US patents
- Apparatus for controlling electric motor861US 4,788,485 AMitsubishi Denki Kabushiki Kaisha · 1988
- Universal ballast control circuit611US 6,137,240 ALumion Corporation · 2000
- LED power control methods and apparatus433US 7,256,554 B2Color Kinetics Incorporated · 2007
- Switching power supply with automatic power factor correction423US 4,683,529 AZytec Corporation · 1987
- LED-based lighting network power control methods and apparatus390US 7,233,115 B2Color Kinetics Incorporated · 2007