H02M 3/3385
With automatic control of output voltage or current
Official title: {with automatic control of output voltage or current (H02M3/33561 takes precedence)}
H02M3/3385 (With automatic control of output voltage or current) appears on 410 US grants and 211 published applications in this corpus.
Search patents in H02M- Granted patents
- 410
- Published applications
- 211
- Assignees
- 223
- Inventors
- 515
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 15 | 0 |
| 1978 | 12 | 0 |
| 1979 | 6 | 0 |
| 1980 | 6 | 0 |
| 1981 | 10 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 11 | 0 |
| 1986 | 11 | 0 |
| 1987 | 10 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 9 | 0 |
| 1998 | 6 | 0 |
| 1999 | 12 | 0 |
| 2000 | 15 | 0 |
| 2001 | 21 | 7 |
| 2002 | 16 | 19 |
| 2003 | 18 | 14 |
| 2004 | 15 | 18 |
| 2005 | 15 | 13 |
| 2006 | 12 | 19 |
| 2007 | 14 | 13 |
| 2008 | 9 | 9 |
| 2009 | 9 | 4 |
| 2010 | 7 | 11 |
| 2011 | 5 | 6 |
| 2012 | 3 | 6 |
| 2013 | 4 | 14 |
| 2014 | 6 | 6 |
| 2015 | 6 | 7 |
| 2016 | 11 | 5 |
| 2017 | 7 | 5 |
| 2018 | 11 | 11 |
| 2019 | 12 | 6 |
| 2020 | 4 | 1 |
| 2021 | 3 | 6 |
| 2022 | 2 | 3 |
| 2023 | 3 | 2 |
| 2024 | 2 | 1 |
| 2025 | 1 | 4 |
| 2026 | 3 | 1 |
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.
- Fixed frequency resonant inverter15 Jul 2025US 12,362,676 B2Myrtle Holdings, LLC
- Integrated circuit and power supply circuit17 Sep 2024US 12,095,380 B2Fuji Electric Co., Ltd.
- 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.
- Output stabilizing circuit and dc/dc converter circuit21 Aug 2025US 2025/0266772 A1Sumida Corporation
- Fixed frequency resonant inverter13 Feb 2025US 2025/0055382 A1Myrtle Holdings, LLC
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
- Switching converter with enhanced voltage clamping and energy recovery197US 4,706,181 AUnisys Corporation · 1987
- Inverter oscillator with current feedback152US 4,127,797 AIota Engineering Co. · 1978
- Connectors adapted for controlling a small form factor power supply134US 6,091,611 AComarco Wireless Technologies, Inc. · 2000
- Modular power supply system111US 4,538,073 AConvergent Technologies, Inc. · 1985