H02P 13/12
Arrangements for controlling transformers, reactors or choke coils, for the purpose of
Official title: by varying magnetic bias
H02P13/12 (Arrangements for controlling transformers, reactors or choke coils, for the purpose of) appears on 11 US grants and 10 published applications in this corpus.
Search patents in H02P- Granted patents
- 11
- Published applications
- 10
- Assignees
- 11
- Inventors
- 24
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 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 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 3 |
| 2018 | 2 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Magnetically controllable choke coil having central connection8 Apr 2025US 12,272,490 B2Siemens Energy Global GmbH & Co. KG
- Driving method and driving device using the same12 Oct 2021US 11,146,266 B2Sync Power Corp.
- System and method for magnetizing a transformer in an electrical system prior to energizing the electrical system18 Jun 2019US 10,326,395 B2Eaton Intelligent Power Limited
- Methods and apparatus for soft operation of transformers using auxiliary winding excitation20 Nov 2018US 10,135,372 B2Eaton Intelligent Power Limited
- Continuously variable saturable shunt reactor21 Aug 2018US 10,056,886 B2Siemens Aktiengesellschaft
- Electrical transformer with resonant primary and inductive secondary and its manufacturing method17 Jul 2025US 2025/0232908 A1Reson Energy Ltda
- Multi-phase electrical transformer and power control apparatus28 Sep 2023US 2023/0308034 A1Third Equation Ltd
- Electrical self-induction transformer23 Jun 2022US 2022/0199318 A1
- Magnetically controllable choke coil having central connection30 Dec 2021US 2021/0407731 A1Siemens Energy Global GmbH & Co. KG
- Driving method and driving device using the same20 May 2021US 2021/0152173 A1Sync Power Corp.
Most cited
By later US patents
- Electric power converter9US 4,896,091 AHasler AG · 1990
- System and method for magnetizing a transformer in an electrical system prior to energizing the electrical system7US 9,337,762 B1Eaton Corporation · 2016
- Continuously variable saturable shunt reactor5US 10,056,886 B2Siemens Aktiengesellschaft · 2018
- Control circuit for an a-c control element4US 4,147,972 ASiemens Aktiengesellschaft · 1979
- Arrangement in transformers2US 4,600,877 AKraftelektronik AB · 1986