H01F 2027/2861
Coil formed by folding a blank
Official title: {Coil formed by folding a blank}
H01F2027/2861 (Coil formed by folding a blank) appears on 111 US grants and 84 published applications in this corpus.
Search patents in H01F- Granted patents
- 111
- Published applications
- 84
- Assignees
- 62
- Inventors
- 206
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 0 |
| 2002 | 3 | 4 |
| 2003 | 1 | 4 |
| 2004 | 3 | 6 |
| 2005 | 2 | 5 |
| 2006 | 2 | 2 |
| 2007 | 8 | 5 |
| 2008 | 2 | 5 |
| 2009 | 2 | 2 |
| 2010 | 1 | 7 |
| 2011 | 5 | 3 |
| 2012 | 4 | 4 |
| 2013 | 2 | 1 |
| 2014 | 1 | 3 |
| 2015 | 3 | 4 |
| 2016 | 1 | 0 |
| 2017 | 4 | 3 |
| 2018 | 1 | 6 |
| 2019 | 2 | 3 |
| 2020 | 4 | 1 |
| 2021 | 2 | 6 |
| 2022 | 2 | 3 |
| 2023 | 0 | 2 |
| 2024 | 3 | 3 |
| 2025 | 3 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic device, power conversion module and manufacturing method of magnetic device13 Jan 2026US 12,525,378 B2Delta Electronics, Inc.
- Inductor and method for manufacturing inductor30 Dec 2025US 12,512,257 B2Murata Manufacturing Co., Ltd.
- Inductor2 Dec 2025US 12,488,937 B2Murata Manufacturing Co., Ltd.
- Inductor6 May 2025US 12,293,866 B2Murata Manufacturing Co., Ltd.
- Coil structure29 Oct 2024US 12,131,859 B2TDK Corporation
- Methods and apparatus to manufacture a coupled inductor27 Aug 2026US 2026/0253780 A1Intel Corporation
- Magnetic device, power conversion module and manufacturing method of magnetic device23 Apr 2026US 2026/0112528 A1Delta Electronics, Inc.
- Transformer assembly including copper stampings as secondary windings8 Aug 2024US 2024/0266105 A1Murata Manufacturing Co., Ltd.
- Skeletonless winding and magnetic assembly11 Jul 2024US 2024/0233994 A1Aplus Power Technology (Hangzhou) Co., Ltd.
- Inductor and dc-dc converter using the same27 Jun 2024US 2024/0212920 A1TDK Corporation
Most cited
By later US patents
- Integrated-magnetic apparatus210US 5,726,615 A1998
- Inductive device107US 5,801,611 AU. S. Philips Corporation · 1998
- Multilayer circuit including stacked layers of insulating material and conductive sections102US 7,205,655 B2Schaffner EMV AG · 2007
- Identification device in the form of a tag-like strip affixable to an article101US 4,694,283 A1987
- Inductor coil structure78US 6,198,375 B1Vishay Dale Electronics, Inc. · 2001