H02M 7/4818
With means for adaptation of resonance frequency
Official title: {with means for adaptation of resonance frequency, e.g. by modification of capacitance or inductance of resonance circuits}
H02M7/4818 (With means for adaptation of resonance frequency) appears on 154 US grants and 186 published applications in this corpus.
Search patents in H02M- Granted patents
- 154
- Published applications
- 186
- Assignees
- 132
- Inventors
- 406
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 5 | 1 |
| 2004 | 0 | 4 |
| 2005 | 0 | 0 |
| 2006 | 2 | 1 |
| 2007 | 2 | 4 |
| 2008 | 3 | 6 |
| 2009 | 2 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 5 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 7 |
| 2015 | 7 | 8 |
| 2016 | 7 | 11 |
| 2017 | 5 | 18 |
| 2018 | 16 | 20 |
| 2019 | 22 | 7 |
| 2020 | 9 | 11 |
| 2021 | 12 | 16 |
| 2022 | 13 | 14 |
| 2023 | 11 | 16 |
| 2024 | 9 | 12 |
| 2025 | 9 | 6 |
| 2026 | 7 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power converter and control method2 Jun 2026US 12,647,044 B2Panasonic Intellectual Property Management Co., Ltd.
- Multi-phase DC/DC converter26 May 2026US 12,640,657 B2Delta Electronics (Thailand) Public Co., Ltd.
- Induction heating apparatus26 May 2026US 12,641,686 B2LG Electronics Inc.
- Inverter24 Mar 2026US 12,587,036 B2QBYSS Ltd
- Inverter20 Jan 2026US 12,531,436 B2QBYSS Ltd
- Power converter3 Sep 2026US 2026/0261195 A1Panasonic Intellectual Property Management Co., Ltd.
- Power converter3 Sep 2026US 2026/0261200 A1Panasonic Intellectual Property Management Co., Ltd.
- Inverter6 Aug 2026US 2026/0229918 A1QBYSS Ltd
- Medical implant system including base station and medical implant6 Aug 2026US 2026/0229924 A1Nyxoah SA
- Modular and configurable resonant inverter system with dynamic transformer ratio switching and automatic load matching for multi-output induction heating and wireless power transfer applications11 Jun 2026US 2026/0163495 A1Ultraflex International, Inc.
Most cited
By later US patents
- Adaptive inductive power supply393US 7,212,414 B2Access Business Group International LLC · 2007
- Adaptive inductive power supply286US 7,639,514 B2Access Business Group International LLC · 2009
- Method and apparatus for control of inductively coupled power transfer systems106US 8,093,758 B2Auckland Uniservices Limited · 2012
- Wireless solar power delivery90US 10,128,660 B1X Development LLC · 2018
- Synthesis of load-independent switch-mode power converters89US 4,885,674 A1989