H02M 3/338
In a self-oscillating arrangement
Official title: in a self-oscillating arrangement (H02M3/337 takes precedence)
H02M3/338 (In a self-oscillating arrangement) appears on 739 US grants and 413 published applications in this corpus.
Search patents in H02M- Granted patents
- 739
- Published applications
- 413
- Assignees
- 381
- Inventors
- 1,040
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 27 | 0 |
| 1978 | 22 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 22 | 0 |
| 1982 | 13 | 0 |
| 1983 | 11 | 0 |
| 1984 | 12 | 0 |
| 1985 | 16 | 0 |
| 1986 | 22 | 0 |
| 1987 | 15 | 0 |
| 1988 | 12 | 0 |
| 1989 | 13 | 0 |
| 1990 | 9 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 12 | 0 |
| 1996 | 4 | 0 |
| 1997 | 11 | 0 |
| 1998 | 14 | 0 |
| 1999 | 18 | 0 |
| 2000 | 19 | 0 |
| 2001 | 28 | 11 |
| 2002 | 23 | 26 |
| 2003 | 24 | 17 |
| 2004 | 21 | 27 |
| 2005 | 19 | 18 |
| 2006 | 17 | 26 |
| 2007 | 20 | 20 |
| 2008 | 17 | 18 |
| 2009 | 13 | 7 |
| 2010 | 11 | 16 |
| 2011 | 8 | 13 |
| 2012 | 9 | 23 |
| 2013 | 13 | 28 |
| 2014 | 17 | 19 |
| 2015 | 17 | 16 |
| 2016 | 19 | 16 |
| 2017 | 15 | 16 |
| 2018 | 29 | 17 |
| 2019 | 21 | 12 |
| 2020 | 13 | 13 |
| 2021 | 14 | 21 |
| 2022 | 13 | 10 |
| 2023 | 11 | 8 |
| 2024 | 4 | 6 |
| 2025 | 6 | 6 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High voltage pulse delivery over long cables in pulsed power systems1 Sep 2026US 12,726,132 B2Halliburton Energy Services.Inc.
- Output stabilizing circuit and DC/DC converter circuit28 Jul 2026US 12,695,394 B2Sumida Corporation
- Controller and self-oscillation DC-DC converter including the controller28 Jul 2026US 12,695,395 B2Ablic Inc.
- Embedded magnetic component transformer device16 Jun 2026US 12,658,354 B2Murata Manufacturing Co., Ltd.
- Self-starting bi-modal operating isolated converters16 Jun 2026US 12,658,786 B1United States of America as represented by the Administrator of NASA
- Power conversion circuit capable of adjusting the resonance period to improve the efficiency of low output power and control method thereof18 Jun 2026US 2026/0171919 A1Richtek Technology Corporation
- Energy harvesting circuit12 Mar 2026US 2026/0074623 A1Resideo LLC
- Voltage converter and power supply system19 Feb 2026US 2026/0051804 A1Huawei Digital Power Technologies Co., Ltd.
- Fixed frequency resonant inverter11 Dec 2025US 2025/0379525 A1Myrtle Holdings, LLC
- High Voltage Pulse Delivery Over Long Cables in Pulsed Power Systems27 Nov 2025US 2025/0364916 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Constant-voltage switching power supply provided with overvoltage output protecting circuit, and electronic apparatus provided with overvoltage protecting circuit1,204US 7,215,517 B2Seiko Epson Corporation · 2007
- Noncontact power transmitting apparatus252US 5,923,544 ATDK Corporation · 1999
- Battery package with DC to DC converter199US 4,296,461 ADuracell International Inc. · 1981
- Switching converter with enhanced voltage clamping and energy recovery197US 4,706,181 AUnisys Corporation · 1987
- DC-AC inverter173US 4,183,079 ASony Corporation · 1980