H02M 3/135
Using semiconductor devices only
Official title: using semiconductor devices only
H02M3/135 (Using semiconductor devices only) appears on 159 US grants and 70 published applications in this corpus.
Search patents in H02M- Granted patents
- 159
- Published applications
- 70
- Assignees
- 122
- Inventors
- 313
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 6 | 0 |
| 1978 | 8 | 0 |
| 1979 | 9 | 0 |
| 1980 | 12 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 2 |
| 2014 | 0 | 4 |
| 2015 | 2 | 2 |
| 2016 | 3 | 3 |
| 2017 | 3 | 8 |
| 2018 | 6 | 12 |
| 2019 | 15 | 9 |
| 2020 | 4 | 9 |
| 2021 | 7 | 0 |
| 2022 | 5 | 3 |
| 2023 | 2 | 3 |
| 2024 | 2 | 4 |
| 2025 | 5 | 3 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Wireless power receiving device21 Jul 2026US 12,689,235 B2Murata Manufacturing Co., Ltd.
- Power converter efficiency boost at low loads, keeping maximum constant switching frequency operation range31 Mar 2026US 12,592,638 B2Infineon Technologies AG
- Resistor based physical unclonable function2 Dec 2025US 12,489,643 B2Analog Devices International Unlimited Company
- Multiple port bidirectional power conversion circuit25 Nov 2025US 12,483,136 B2University of North Texas
- Charge pumping using adjustable capacitor12 Aug 2025US 12,388,362 B2Infineon Technologies Canada Inc.
- Hybrid single mode buck boost converter2 Jul 2026US 2026/0189129 A1Korea University Research and Business Foundation
- Voltage stabilization with on-device metal capacitor30 Apr 2026US 2026/0121530 A1Arm Limited
- Control Circuit, Power Supply Circuit, and Electronic Apparatus26 Feb 2026US 2026/0058552 A1Rohm Co., Ltd.
- Provision of two mutually different electrical dc voltages by means of an energy converter15 May 2025US 2025/0158508 A1Inventronics, Inc.
- Power converter efficiency boost at low loads, keeping maximum constant switching frequency operation range27 Feb 2025US 2025/0070663 A1Infineon Technologies AG
Most cited
By later US patents
- Power conversion using zero current soft switching224US 5,287,261 AThe Texas A&M University System · 1994
- Sequential discharge and its use for rectification85US 5,905,371 AD.C. Transformation, Inc. · 1999
- Metal base cookware induction heating apparatus having improved power control circuit for insuring safe operation78US 4,151,387 AEnvironment One Corporation · 1979
- Integrated converter high power CD ignition67US 5,207,208 ACombustion Electromagnetics, Inc. · 1993
- Solar cell system having alternating current output64US 4,217,633 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1980