H02M 1/348
Passive dissipative snubbers
Official title: {Passive dissipative snubbers}
H02M1/348 (Passive dissipative snubbers) appears on 303 US grants and 352 published applications in this corpus.
Search patents in H02M- Granted patents
- 303
- Published applications
- 352
- Assignees
- 225
- Inventors
- 834
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 2 |
| 2002 | 4 | 0 |
| 2003 | 4 | 5 |
| 2004 | 0 | 5 |
| 2005 | 5 | 3 |
| 2006 | 0 | 3 |
| 2007 | 3 | 3 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 2 | 3 |
| 2011 | 2 | 4 |
| 2012 | 4 | 7 |
| 2013 | 3 | 6 |
| 2014 | 5 | 9 |
| 2015 | 5 | 16 |
| 2016 | 10 | 12 |
| 2017 | 20 | 15 |
| 2018 | 9 | 23 |
| 2019 | 25 | 26 |
| 2020 | 20 | 24 |
| 2021 | 22 | 38 |
| 2022 | 22 | 42 |
| 2023 | 26 | 26 |
| 2024 | 30 | 33 |
| 2025 | 35 | 27 |
| 2026 | 15 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power supply substrate including transformer and snubber circuit25 Aug 2026US 12,719,374 B2Canon Kabushiki Kaisha
- Semiconductor device11 Aug 2026US 12,707,983 B2Fuji Electric Co., Ltd.
- Duplex inverter generator4 Aug 2026US 12,700,786 B2Imperial Industrial Supply Co.
- Flyback converter with improved response28 Jul 2026US 12,695,389 B2Next Generation Power, Inc.
- Active clamp flyback converter21 Jul 2026US 12,689,299 B2Sanken Electric Co., Ltd.
- Power converter, method and apparatus for insulation detection thereof17 Sep 2026US 2026/0276690 A1Sungrow Power Supply Co., Ltd.
- Configurable fast transition pulse power supply unit3 Sep 2026US 2026/0261256 A1AES Global Holdings PTE Ltd.
- Power protection circuit and surge protection circuit thereof20 Aug 2026US 2026/0246370 A1Leotek Corporation
- Microinverter and current detection method9 Jul 2026US 2026/0196915 A1Huawei Digital Power Technologies Co., Ltd.
- Mixed snubber capacitance for paralleled semiconductors to reduce electro-magnetic interference9 Jul 2026US 2026/0196926 A1Deere & Company
Most cited
By later US patents
- Power electronic interface circuits for batteries and ultracapacitors in electric vehicles and battery storage systems219US 5,710,699 AGeneral Electric Company · 1998
- Transformer isolated driver and isolated forward converter67US 6,069,802 A2000
- Nanosecond pulser bias compensation62US 10,978,955 B2Eagle Harbor Technologies, Inc. · 2021
- Accelerated commutation for passive clamp isolated boost converters42US 6,452,815 B12002
- Low-cost, high-voltage, flyback power supply38US 5,602,724 APower Integrations, Inc. · 1997