H02M 7/28
Using electrolytic rectifiers
Official title: using electrolytic rectifiers
H02M7/28 (Using electrolytic rectifiers) appears on 7 US grants and 10 published applications in this corpus.
Search patents in H02M- Granted patents
- 7
- Published applications
- 10
- Assignees
- 9
- Inventors
- 25
- Latest grant
- 22 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 3 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 2 |
By publication year.
Recent patents
- Direct current fast charger system with low standby power22 Jul 2025US 12,365,255 B2Rivian IP Holdings, LLC
- Hydrogen production apparatus and hydrogen production system2 Nov 2021US 11,162,181 B2Kabushiki Kaisha Toshiba
- Hydrogen production apparatus and hydrogen production system17 Mar 2020US 10,590,552 B2Kabushiki Kaisha Toshiba
- Three-phase/single-phase alternating-current power supply compatible electrically driven hoisting machine18 Feb 2020US 10,566,894 B2Kito Corporation
- Basketball with piezo elements to produce charging current5 Nov 2019US 10,468,582 B2
- Direct current fast charger system with low standby power23 Oct 2025US 2025/0326305 A1Rivian IP Holdings, LLC
- Three-phase power supply conversion circuit for household appliance, household appliance, and power-on control method24 Apr 2025US 2025/0132663 A1Foshan Shunde Midea Electric Science and Technology Co., Ltd.
- Direct current fast charger system with low standby power15 Jun 2023US 2023/0182586 A1Rivian IP Holdings, LLC
- Light-emitting Diode Lighting Fixture and Light-emitting Diode Illumination System27 Aug 2020US 2020/0275538 A1Superbright Lighting and Decor Limited
- Power converter11 Jun 2020US 2020/0186053 A1
Most cited
By later US patents
- Hydrogen production apparatus and hydrogen production system11US 11,162,181 B2Kabushiki Kaisha Toshiba · 2021
- Transformer balance circuit6US 7,362,596 B2Eltek Valere AS · 2008
- Hydrogen production apparatus and hydrogen production system3US 10,590,552 B2Kabushiki Kaisha Toshiba · 2020
- Uninterrupted power bank capable of supplying high DC voltage during interruption of main supply and providing AC voltage as normal supply of the main supply2US 10,148,124 B1Channel Well Technology Co., Ltd. · 2018