H01F 17/043
With two, usually identical or nearly identical parts enclosing completely the coil
Official title: {with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)}
H01F17/043 (With two, usually identical or nearly identical parts enclosing completely the coil) appears on 194 US grants and 224 published applications in this corpus.
Search patents in H01F- Granted patents
- 194
- Published applications
- 224
- Assignees
- 112
- Inventors
- 402
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 7 |
| 2003 | 5 | 8 |
| 2004 | 4 | 13 |
| 2005 | 10 | 17 |
| 2006 | 14 | 15 |
| 2007 | 9 | 14 |
| 2008 | 12 | 12 |
| 2009 | 10 | 7 |
| 2010 | 6 | 10 |
| 2011 | 9 | 7 |
| 2012 | 8 | 4 |
| 2013 | 8 | 15 |
| 2014 | 4 | 7 |
| 2015 | 1 | 4 |
| 2016 | 7 | 9 |
| 2017 | 5 | 10 |
| 2018 | 5 | 14 |
| 2019 | 6 | 9 |
| 2020 | 8 | 5 |
| 2021 | 4 | 11 |
| 2022 | 5 | 11 |
| 2023 | 9 | 7 |
| 2024 | 7 | 5 |
| 2025 | 5 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coil component24 Mar 2026US 12,586,711 B2Samsung Electro-Mechanics Co., Ltd.
- Coil element23 Dec 2025US 12,505,949 B2TDK Electronics Co., Ltd.
- Soft magnetic core with backwall air gap16 Dec 2025US 12,500,018 B2Fair-Rite Products Corporation
- Coil device4 Nov 2025US 12,462,965 B2TDK Corporation
- Coil device21 Jan 2025US 12,205,757 B2TDK Corporation
- Patterned Magnetic Flux Structures and Applications20 Aug 2026US 2026/0245778 A1NVIDIA Corporation
- Patterned Magnetic Flux Structures and Applications20 Aug 2026US 2026/0245780 A1NVIDIA Corporation
- Inductor for suppressing common mode (cm) and differential mode (dm) noise3 Apr 2025US 2025/0111979 A1Telefonaktiebolaget LM Ericsson (publ)
- Ultra-narrow high current power inductor for circuit board applications19 Dec 2024US 2024/0420881 A1Eaton Intelligent Power Limited
- Magnetic device17 Oct 2024US 2024/0347256 A1Delta Electronics, Inc.
Most cited
By later US patents
- Ferrite core185US 6,501,362 B1UMEC USA, Inc. · 2002
- Multiple coupling and non-coupling inductor62US 7,525,406 B1Well-Mag Electronic Ltd. · 2009
- Integrated transformer and inductor61US 4,613,841 AGeneral Electric Company · 1986
- Small-size inductor55US 4,498,067 AMurata Manufacturing Co., Ltd. · 1985
- Controlled induction device and method of manufacturing51US 7,057,486 B2Pulse Engineering, Inc. · 2006