H01F 27/306
Fastening or mounting coils or windings on core, casing or other support
Official title: {Fastening or mounting coils or windings on core, casing or other support}
H01F27/306 (Fastening or mounting coils or windings on core, casing or other support) appears on 1,223 US grants and 1,769 published applications in this corpus.
Search patents in H01F- Granted patents
- 1,223
- Published applications
- 1,769
- Assignees
- 592
- Inventors
- 3,243
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 6 | 0 |
| 1981 | 9 | 0 |
| 1982 | 10 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 2 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 0 | 0 |
| 2001 | 5 | 1 |
| 2002 | 7 | 13 |
| 2003 | 15 | 7 |
| 2004 | 9 | 11 |
| 2005 | 9 | 19 |
| 2006 | 20 | 28 |
| 2007 | 19 | 18 |
| 2008 | 13 | 27 |
| 2009 | 13 | 16 |
| 2010 | 11 | 31 |
| 2011 | 23 | 33 |
| 2012 | 29 | 51 |
| 2013 | 26 | 41 |
| 2014 | 44 | 69 |
| 2015 | 34 | 73 |
| 2016 | 42 | 58 |
| 2017 | 45 | 57 |
| 2018 | 54 | 88 |
| 2019 | 65 | 118 |
| 2020 | 76 | 139 |
| 2021 | 64 | 122 |
| 2022 | 83 | 139 |
| 2023 | 97 | 163 |
| 2024 | 117 | 184 |
| 2025 | 105 | 153 |
| 2026 | 73 | 110 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Core piece, reactor, converter, and power conversion device6 Oct 2026US 12,755,888 B2Autonetworks Technologies, Ltd.
- Electrical element, circuit board, and switching power supply29 Sep 2026US 12,749,614 B2Huawei Technologies Co., Ltd.
- Flat coil and coil device29 Sep 2026US 12,749,615 B2TDK Corporation
- Electric transformer with an increased total leakage impedance29 Sep 2026US 12,749,616 B2Exxelia
- Compensation structure for reducing circulating current in window of transformer and transformer comprising compensation structure22 Sep 2026US 12,744,155 B2Siemens Energy Global GmbH & Co. KG
- Coil component8 Oct 2026US 2026/0311927 A1Murata Manufacturing Co., Ltd.
- Magnetic shunt for toroidal magnetic assembly8 Oct 2026US 2026/0311929 A1Tesla, Inc.
- Magnetic component1 Oct 2026US 2026/0302046 A1Delta Electronics, Inc.
- Method for controlling magnetic flux17 Sep 2026US 2026/0279645 A1Delta Electronics, Inc.
- Wiring conductor and coil component17 Sep 2026US 2026/0279655 A1TDK Corporation
Most cited
By later US patents
- Power conversion and distribution system283US 5,982,645 ASquare D Company · 1999
- Transformer construction143US 8,410,889 B2Enecsys Limited · 2013
- Transformer construction122US 8,917,156 B2Enecsys Limited · 2014
- Electroacoustic transducer85US 7,062,063 B2Sonion Horsens A/S · 2006
- Transformer for use with surface mounting technology83US 4,975,671 AApple Computer, Inc. · 1990