H02M 5/12
For conversion of voltage or current amplitude only
Official title: for conversion of voltage or current amplitude only
H02M5/12 (For conversion of voltage or current amplitude only) appears on 149 US grants and 188 published applications in this corpus.
Search patents in H02M- Granted patents
- 149
- Published applications
- 188
- Assignees
- 146
- Inventors
- 440
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 3 |
| 2007 | 2 | 1 |
| 2008 | 2 | 4 |
| 2009 | 1 | 2 |
| 2010 | 4 | 2 |
| 2011 | 1 | 8 |
| 2012 | 3 | 3 |
| 2013 | 7 | 8 |
| 2014 | 2 | 9 |
| 2015 | 4 | 9 |
| 2016 | 6 | 12 |
| 2017 | 8 | 12 |
| 2018 | 12 | 9 |
| 2019 | 11 | 12 |
| 2020 | 9 | 16 |
| 2021 | 8 | 13 |
| 2022 | 12 | 10 |
| 2023 | 11 | 12 |
| 2024 | 7 | 11 |
| 2025 | 13 | 14 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Voltage and frequency transformation systems, methods and devices for wind power electric energy21 Apr 2026US 12,609,628 B2Zhejiang Jiangshan Transformer Co., Ltd.
- Voltage amplitude and phase adjustment apparatus and method, and computer device and storage medium27 Aug 2026US 2026/0254344 A1
- Method for operating an electrolysis system, related controller, power supply and electrolyzer system23 Jul 2026US 2026/0209964 A1Siemens Energy Global GmbH & Co. KG
- Fractional matrix transformer16 Jul 2026US 2026/0204472 A1Infineon Technologies Austria AG
- Integrated dc genset28 May 2026US 2026/0149272 A1
- On-board charger and control method therefor7 May 2026US 2026/0128597 A1Sungrow Power Supply Co., Ltd.
Most cited
By later US patents
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- Universal adapter77US 5,159,545 A1992
- Shunt coil controlled transformer43US 5,187,428 AMiller Electric Mfg. Co. · 1993