H01F 2017/004
With the coil helically wound around an axis without a core
Official title: {with the coil helically wound around an axis without a core}
H01F2017/004 (With the coil helically wound around an axis without a core) appears on 201 US grants and 260 published applications in this corpus.
Search patents in H01F- Granted patents
- 201
- Published applications
- 260
- Assignees
- 65
- Inventors
- 463
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 3 |
| 2008 | 0 | 3 |
| 2009 | 2 | 2 |
| 2010 | 1 | 2 |
| 2011 | 4 | 6 |
| 2012 | 5 | 5 |
| 2013 | 2 | 9 |
| 2014 | 4 | 9 |
| 2015 | 4 | 7 |
| 2016 | 7 | 9 |
| 2017 | 7 | 14 |
| 2018 | 12 | 22 |
| 2019 | 15 | 22 |
| 2020 | 20 | 18 |
| 2021 | 14 | 17 |
| 2022 | 8 | 28 |
| 2023 | 16 | 33 |
| 2024 | 18 | 18 |
| 2025 | 31 | 7 |
| 2026 | 9 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Multilayer coil component13 Aug 2026US 2026/0237552 A1TDK Corporation
- Coil component30 Jul 2026US 2026/0221330 A1TDK Corporation
- Inductor and manufacturing method therefor30 Jul 2026US 2026/0221332 A1Shenzhen Sunlord Electronics Co., Ltd.
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Most cited
By later US patents
- Inductive structures for semiconductor integrated circuits217US 5,095,357 AMitsubishi Denki Kabushiki Kaisha · 1992
- Method for fabricating a vertical trench inductor113US 5,372,967 AMotorola, Inc. · 1994
- Method for fabricating highly conductive vias97US 5,619,791 ALucent Technologies Inc. · 1997
- Laminated electronic parts and process for making the same83US 4,322,698 A1982
- Method of making a device including a metallized magnetic substrate64US 5,802,702 ALucent Technologies Inc. · 1998