H02P 13/06
Arrangements for controlling transformers, reactors or choke coils, for the purpose of
Official title: by tap-changing; by rearranging interconnections of windings
H02P13/06 (Arrangements for controlling transformers, reactors or choke coils, for the purpose of) appears on 101 US grants and 94 published applications in this corpus.
Search patents in H02P- Granted patents
- 101
- Published applications
- 94
- Assignees
- 82
- Inventors
- 272
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 1 |
| 2003 | 2 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 2 | 3 |
| 2009 | 0 | 0 |
| 2010 | 4 | 7 |
| 2011 | 2 | 6 |
| 2012 | 5 | 4 |
| 2013 | 6 | 4 |
| 2014 | 1 | 7 |
| 2015 | 4 | 9 |
| 2016 | 7 | 7 |
| 2017 | 6 | 4 |
| 2018 | 6 | 3 |
| 2019 | 5 | 6 |
| 2020 | 5 | 5 |
| 2021 | 2 | 6 |
| 2022 | 3 | 3 |
| 2023 | 5 | 5 |
| 2024 | 2 | 3 |
| 2025 | 1 | 5 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Invariable-change-component-based power converter19 May 2026US 12,633,838 B2Electric Hydrogen Co.
- Transformer arrangement and method for voltage conversion including a transformer and a converter coupling27 May 2025US 12,316,235 B2Hitachi Energy Ltd
- Flexible voltage transformation system2 Jul 2024US 12,028,001 B2Hitachi Energy Ltd
- Transformer assembly for electric grids and a related control method19 Mar 2024US 11,935,691 B2Hitachi Energy Ltd
- Transformer power management controllers and transformer power management methods10 Oct 2023US 11,783,996 B2Battelle Memorial Institute
- Dynamic power flow controller (dpfc) for regulating power flow in a power transmission line25 Jun 2026US 2026/0178063 A1
- Iot-based automated voltage controller system for motor operated three-phase autotransformer26 Feb 2026US 2026/0056564 A1
- Method for adapting a target voltage value for controlling a tap-changing transformer, and device for adapting a target voltage value for controlling a tap-changing transformer13 Nov 2025US 2025/0350220 A1Maschinenfabrik Reinhausen GmbH
- Controlling the timing of a transformer tap change31 Jul 2025US 2025/0247030 A1Siemens Gamesa Renewable Energy Innovation & Technology S.L.
- Electrical transformer with resonant primary and inductive secondary and its manufacturing method17 Jul 2025US 2025/0232908 A1Reson Energy Ltda
Most cited
By later US patents
- High power battery powered RF amplifier topology200US 10,159,524 B2Ethicon, Inc. · 2018
- Switched multi-tapped transformer power conversion method and apparatus62US 5,155,672 AHeart Interface Corporation · 1992
- Means and method for controlling elecrical transformer voltage regulating tapchangers60US 5,136,233 AIowa-Illinois Gas and Electric Company · 1992
- Phase-shifting transformer system54US 5,166,597 AElectric Power Research Institute, Inc. · 1992
- Pre-charging an inverter using an auxiliary winding39US 8,223,515 B2TECO-Westinghouse Motor Company · 2012