H02M 5/16
For conversion of frequency
Official title: for conversion of frequency
H02M5/16 (For conversion of frequency) appears on 29 US grants and 29 published applications in this corpus.
Search patents in H02M- Granted patents
- 29
- Published applications
- 29
- Assignees
- 30
- Inventors
- 94
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 2 | 2 |
| 2015 | 0 | 2 |
| 2016 | 0 | 3 |
| 2017 | 4 | 2 |
| 2018 | 3 | 3 |
| 2019 | 3 | 6 |
| 2020 | 5 | 0 |
| 2021 | 2 | 4 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Voltage and frequency transformation systems, methods and devices for wind power electric energy21 Apr 2026US 12,609,628 B2Zhejiang Jiangshan Transformer Co., Ltd.
- Positive and negative bipolar modular multilevel alternating current-alternating current frequency converter14 Oct 2025US 12,445,060 B2Southeast University
- Converter apparatus and operating method13 May 2025US 12,301,006 B2SMA Solar Technology AG
- Device and system for generating low frequency alternating electric field, and signal conditioning method27 Jun 2023US 11,684,075 B2Zhejiang Chilly Technology Corp. Ltd.
- Electrical power distribution network and process25 Apr 2023US 11,637,429 B2Third Equation Ltd
- Positive and negative bipolar modular multilevel alternating current-alternating current frequency converter18 Sep 2025US 2025/0293611 A1Southeast University
- Voltage and frequency transformation systems, methods and devices for wind power electric energy17 Jul 2025US 2025/0233523 A1Zhejiang Jiangshan Transformer Co., Ltd.
- Substrate processing apparatus and substrate processing method29 Aug 2024US 2024/0290577 A1Tokyo Electron Limited
- Frequency conversion power transmission system29 Jun 2023US 2023/0208307 A1Global Energy Interconnection Research Institute Co., Ltd.
- Converter apparatus and operating method8 Sep 2022US 2022/0285946 A1SMA Solar Technology AG
Most cited
By later US patents
- Solid-state phase splitting transformer13US 9,634,552 B22017
- Unrestricted frequency changer with current source output9US 4,750,098 AWestinghouse Electric Corp. · 1988
- Cooling arrangement in frequency converter7US 7,023,712 B2Vacon Oyj · 2006
- Arrangement for power supply for a reactor for production of polysilicon with a frequency converter7US 8,767,427 B2Aeg Power Solutions B.V. · 2014
- Converter topologies for common mode voltage reduction4US 9,825,556 B2SunPower Corporation · 2017