H01F 17/06
With core substantially closed in itself
Official title: with core substantially closed in itself, e.g. toroid
H01F17/06 (With core substantially closed in itself) appears on 1,013 US grants and 1,138 published applications in this corpus.
Search patents in H01F- Granted patents
- 1,013
- Published applications
- 1,138
- Assignees
- 489
- Inventors
- 2,129
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 8 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 11 | 0 |
| 1997 | 5 | 0 |
| 1998 | 12 | 0 |
| 1999 | 13 | 0 |
| 2000 | 21 | 0 |
| 2001 | 16 | 7 |
| 2002 | 14 | 15 |
| 2003 | 17 | 20 |
| 2004 | 22 | 41 |
| 2005 | 17 | 32 |
| 2006 | 29 | 48 |
| 2007 | 29 | 47 |
| 2008 | 28 | 33 |
| 2009 | 23 | 47 |
| 2010 | 34 | 37 |
| 2011 | 44 | 39 |
| 2012 | 32 | 22 |
| 2013 | 21 | 40 |
| 2014 | 29 | 32 |
| 2015 | 19 | 41 |
| 2016 | 27 | 54 |
| 2017 | 36 | 59 |
| 2018 | 49 | 67 |
| 2019 | 54 | 67 |
| 2020 | 38 | 66 |
| 2021 | 46 | 75 |
| 2022 | 65 | 71 |
| 2023 | 55 | 51 |
| 2024 | 61 | 52 |
| 2025 | 49 | 45 |
| 2026 | 24 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods for thermal management in inductors8 Sep 2026US 12,731,721 B2Hamilton Sundstrand Corporation
- Magnetic core of an electronic assembly25 Aug 2026US 12,718,976 B2Robert Bosch GmbH
- Magnetic component18 Aug 2026US 12,712,110 B2Cyntec Co., Ltd.
- EMC filter device having an integrated current sensor and an integrated capacitor; and power electronics module18 Aug 2026US 12,712,514 B2Schaeffler Technologies AG & Co. KG
- Manufacturing method of magnetic element4 Aug 2026US 12,700,533 B2Delta Electronics (Shanghai) Co., Ltd.
- Choke for a multi-conductor system8 Oct 2026US 2026/0311924 A1TDK Electronics Co., Ltd.
- Magnetic assembly and manufacturing process27 Aug 2026US 2026/0253781 A1MetaPWR Electronics Co., Ltd.
- Magnetic thin film process chamber design for high-density power converters6 Aug 2026US 2026/0229394 A1APPLIED Materials.Inc.
- Inductor array design for high density vertical power delivery application16 Jul 2026US 2026/0202887 A1Tesla, Inc.
- Holder for magnetic substance16 Jul 2026US 2026/0206160 A1LG Innotek Co., Ltd.
Most cited
By later US patents
- Integrated circuit toroidal inductor182US 5,793,272 AInternational Business Machines Corporation · 1998
- Integrated circuit inductor175US 5,884,990 AInternational Business Machines Corporation · 1999
- Modular surface mount circuit device and a manufacturing method thereof161US 5,959,846 ACitizen Electronics Co., Ltd. · 1999
- Integrated circuit spiral inductor150US 6,114,937 AInternational Business Machines Corporation · 2000
- Apparatus and process for reducing the susceptibility of active implantable medical devices to medical procedures such as magnetic resonance imaging134US 7,489,495 B2Greatbatch-Sierra, Inc. · 2009