H02H 7/122
For inverters, i.e. dc/ac converters
Official title: for inverters, i.e. DC/AC converters
H02H7/122 (For inverters, i.e. dc/ac converters) appears on 756 US grants and 741 published applications in this corpus.
Search patents in H02H- Granted patents
- 756
- Published applications
- 741
- Assignees
- 411
- Inventors
- 1,774
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 12 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 13 | 0 |
| 1999 | 11 | 0 |
| 2000 | 7 | 0 |
| 2001 | 3 | 1 |
| 2002 | 5 | 5 |
| 2003 | 5 | 8 |
| 2004 | 8 | 8 |
| 2005 | 3 | 2 |
| 2006 | 6 | 8 |
| 2007 | 3 | 18 |
| 2008 | 8 | 10 |
| 2009 | 11 | 16 |
| 2010 | 10 | 8 |
| 2011 | 11 | 17 |
| 2012 | 10 | 16 |
| 2013 | 17 | 34 |
| 2014 | 22 | 42 |
| 2015 | 23 | 42 |
| 2016 | 34 | 50 |
| 2017 | 54 | 46 |
| 2018 | 48 | 48 |
| 2019 | 52 | 61 |
| 2020 | 40 | 41 |
| 2021 | 50 | 47 |
| 2022 | 30 | 47 |
| 2023 | 33 | 38 |
| 2024 | 58 | 52 |
| 2025 | 44 | 45 |
| 2026 | 19 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Dc inversion-based ac valve control system1 Oct 2026US 2026/0302762 A1Fujian OralGarden Technology Co., Ltd.
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- Systems and methods for tilt propellers with tilt actuator gearbox and integrated inverter27 Aug 2026US 2026/0249978 A1Archer Aviation Inc.
Most cited
By later US patents
- Apparatus and method of detecting ground fault in power conversion system248US 6,927,955 B2Canon Kabushiki Kaisha · 2005
- System and method for protection during inverter shutdown in distributed power installations214US 8,816,535 B2Solaredge Technologies Ltd. · 2014
- Parallel connection of controllable semiconductor components187US 5,859,772 AABB Daimler-Benz Transportation (Technology) GmbH · 1999
- Fault tolerant power converter186US 5,708,576 ASundstrand Corporation · 1998
- Security apparatus for power converter178US 4,819,121 AKabushiki Kaisha Toshiba · 1989