Leadtrend Technology Corp.
Zhubei City, TW· latest recorded location
Leadtrend Technology Corp. is named on 187 US grants and 221 published applications in this corpus. Its most frequent classification is H02M (Apparatus for conversion between ac and ac, between ac and dc, or).
- Granted patents
- 187
- Published applications
- 221
- Inventors
- 107
- Granted in 2026 so far
- 6
- Most recent grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 0 | 5 |
| 2006 | 5 | 0 |
| 2007 | 1 | 4 |
| 2008 | 4 | 6 |
| 2009 | 7 | 15 |
| 2010 | 9 | 11 |
| 2011 | 8 | 6 |
| 2012 | 6 | 11 |
| 2013 | 11 | 20 |
| 2014 | 12 | 14 |
| 2015 | 16 | 22 |
| 2016 | 13 | 10 |
| 2017 | 16 | 12 |
| 2018 | 9 | 18 |
| 2019 | 17 | 7 |
| 2020 | 15 | 7 |
| 2021 | 4 | 12 |
| 2022 | 7 | 7 |
| 2023 | 7 | 10 |
| 2024 | 7 | 9 |
| 2025 | 7 | 6 |
| 2026 | 6 | 9 |
By publication year. 2026 runs to 8 Oct.
Technology areas
Share of 408 documents
- H02MApparatus for conversion between ac and ac, between ac and dc, or284
- Y02BEnergy-efficient buildings168
- H05BElectric heating61
- H03KPulse technique34
- H02HEmergency protective circuit arrangements26
- H10DInorganic electric semiconductor devices26
- H02JPower supply and charging17
- G06FComputing and data processing14
- G05FSystems for regulating electric or magnetic variables10
- G01RMeasuring electric variables7
Recent patents
- LLC resonant converter and control method thereof25 Aug 2026US 12,719,377 B2
- Secondary-side controller applied to a flyback power converter and operational method28 Jul 2026US 12,695,393 B2
- Synchronous rectification controller and control method thereof5 May 2026US 12,620,906 B2
- High-voltage tolerant device and detection circuit7 Apr 2026US 12,598,802 B2
- Combo circuit with electrostatic discharge protection10 Mar 2026US 12,574,023 B2
- Controller for making a power converter start up normally and operational method thereof2 Jul 2026US 2026/0189133 A1
- Controller applied to an llc resonant power converter18 Jun 2026US 2026/0171906 A1
- Controller capable of detecting a direct current (dc) voltage information11 Jun 2026US 2026/0163475 A1
- PFC Power Supply and Control Method Thereof21 May 2026US 2026/0142564 A1
- Control Method and Power Controller for Power Factor Correction19 Feb 2026US 2026/0051811 A1
Most cited
By later US patents
- Dual loop voltage regulation circuit of power supply chip133US 7,193,453 B22007
- Control methods for switching power supplies87US 8,391,028 B22013
- Adaptive dead-time controller25US 7,057,380 B22006
- Quasi-resonant fly-back converter without auxiliary winding19US 7,898,823 B22011
- Active feedback control integrated circuit applied to an alternating current/direct current converter and operation method thereof19US 9,048,723 B22015