H02J 3/1828
With stepwise control
Official title: with stepwise control, e.g. switched capacitor banks
H02J3/1828 (With stepwise control) appears on 121 US grants and 103 published applications in this corpus.
Search patents in H02J- Granted patents
- 121
- Published applications
- 103
- Assignees
- 65
- Inventors
- 236
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 5 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 1 |
| 2003 | 0 | 1 |
| 2004 | 3 | 2 |
| 2005 | 2 | 1 |
| 2006 | 3 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 4 |
| 2009 | 0 | 4 |
| 2010 | 4 | 4 |
| 2011 | 1 | 4 |
| 2012 | 5 | 10 |
| 2013 | 7 | 15 |
| 2014 | 8 | 6 |
| 2015 | 5 | 8 |
| 2016 | 9 | 3 |
| 2017 | 3 | 7 |
| 2018 | 9 | 6 |
| 2019 | 6 | 3 |
| 2020 | 7 | 4 |
| 2021 | 3 | 5 |
| 2022 | 3 | 4 |
| 2023 | 3 | 4 |
| 2024 | 1 | 1 |
| 2025 | 3 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power control system and heat pump system20 Jan 2026US 12,531,416 B2Daikin Industries, Ltd.
- Systems and methods for correcting reactive power anomalies in electrical networks based on distribution measurements20 May 2025US 12,308,647 B1
- Electric switching device18 Feb 2025US 12,230,460 B2Hitachi Energy Ltd
- System and method for determining a local conservative voltage reduction CVR factor28 Jan 2025US 12,212,140 B2Sentient Energy Technology, LLC
- Systems and methods for volt-ampere reactive control and optimization1 Oct 2024US 12,107,422 B2Dominion Energy, Inc.
- Compensation system integrated with active harmonic filter and static compensator systems11 Jun 2026US 2026/0163376 A1Elektra Elektronik Sanayi Ve Ticaret Anonim Sirketi
- Capacitor bank control system14 May 2026US 2026/0133236 A1Eaton Intelligent Power Limited
- The maximum transmission efficiency method25 Sep 2025US 2025/0300462 A1
- Systems and methods for volt-ampere reactive control and optimization5 Dec 2024US 2024/0405554 A1Dominion Energy, Inc.
- Power control system and heat pump system9 Nov 2023US 2023/0358455 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Dynamic distributed power grid control system147US 8,401,709 B2Spirae, Inc. · 2013
- Power factor controller70US 4,891,569 AVersatex Industries · 1990
- Method and system for providing power factor correction in a power distribution system66US 7,804,280 B2Current Technologies, LLC · 2010
- Dynamic reactive compensation system and method52US 7,091,703 B2American Superconductor Corporation · 2006
- Distribution circuit var management system using adaptive capacitor controls44US 5,541,498 A1996