H02M 1/344
Active dissipative snubbers
Official title: {Active dissipative snubbers}
H02M1/344 (Active dissipative snubbers) appears on 147 US grants and 170 published applications in this corpus.
Search patents in H02M- Granted patents
- 147
- Published applications
- 170
- Assignees
- 137
- Inventors
- 390
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 2 |
| 2005 | 3 | 4 |
| 2006 | 2 | 3 |
| 2007 | 2 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 2 | 1 |
| 2011 | 2 | 4 |
| 2012 | 2 | 8 |
| 2013 | 5 | 3 |
| 2014 | 6 | 6 |
| 2015 | 3 | 4 |
| 2016 | 6 | 9 |
| 2017 | 7 | 12 |
| 2018 | 12 | 11 |
| 2019 | 14 | 8 |
| 2020 | 7 | 7 |
| 2021 | 6 | 13 |
| 2022 | 12 | 11 |
| 2023 | 11 | 19 |
| 2024 | 9 | 12 |
| 2025 | 14 | 11 |
| 2026 | 6 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power converter and method of controlling the same22 Sep 2026US 12,744,457 B2Chicony Power Technology Co., Ltd.
- Protection circuit of flyback converter and control method11 Aug 2026US 12,706,544 B2Joulwatt Technology (Hangzhou) Co., Ltd.
- Voltage clamping circuit for solid state circuit breakers21 Jul 2026US 12,689,209 B2ABB Schweiz AG
- Power control system16 Jun 2026US 12,658,692 B2Transportation IP Holdings, LLC
- Converter arrangement and method for operating a converter arrangement5 May 2026US 12,620,893 B2Hitachi Energy Ltd
- Power protecting device and controlling method thereof24 Sep 2026US 2026/0291375 A1AcLeap Power Inc.
- Integrated common-mode inductor and switching power converter having the same27 Aug 2026US 2026/0253778 A1Asian Power Devices Inc.
- Voltage Converter Device20 Aug 2026US 2026/0246383 A1
- Converter with Multifunction Output Protection Circuit and Method13 Aug 2026US 2026/0238121 A1ABB Schweiz AG
- Method, device and arrangement for surge protection6 Aug 2026US 2026/0229987 A1
Most cited
By later US patents
- Dissipative clamping of an electrical circuit with a clamp voltage varied in response to an input voltage59US 6,496,392 B2Power Integrations, Inc. · 2002
- Dissipative clamping of an electrical circuit with a clamp voltage varied in response to an input voltage47US 6,687,141 B2Power Integrations, Inc. · 2004
- Energy recovery snubber34US 4,607,322 ASundstrand Corporation · 1986
- Soft-switched power converters24US 6,987,675 B2Delta Electronics, Inc. · 2006
- Switching power supply system and process23US 5,847,941 AOrigin Electric Company, Limited · 1998