H01F 27/2847
Sheets
Official title: {Sheets; Strips (H01F27/2866 takes precedence)}
H01F27/2847 (Sheets) appears on 899 US grants and 1,224 published applications in this corpus.
Search patents in H01F- Granted patents
- 899
- Published applications
- 1,224
- Assignees
- 462
- Inventors
- 2,360
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 8 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 0 |
| 2002 | 7 | 16 |
| 2003 | 9 | 15 |
| 2004 | 9 | 19 |
| 2005 | 14 | 17 |
| 2006 | 17 | 23 |
| 2007 | 20 | 31 |
| 2008 | 22 | 30 |
| 2009 | 16 | 20 |
| 2010 | 14 | 40 |
| 2011 | 30 | 29 |
| 2012 | 24 | 33 |
| 2013 | 22 | 25 |
| 2014 | 23 | 49 |
| 2015 | 22 | 43 |
| 2016 | 29 | 32 |
| 2017 | 28 | 44 |
| 2018 | 38 | 62 |
| 2019 | 49 | 86 |
| 2020 | 41 | 71 |
| 2021 | 49 | 96 |
| 2022 | 50 | 93 |
| 2023 | 60 | 91 |
| 2024 | 88 | 101 |
| 2025 | 72 | 83 |
| 2026 | 39 | 75 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multilayer electronic component6 Oct 2026US 12,756,373 B2TDK Corporation
- Manufacturing method of coil component and coil component29 Sep 2026US 12,746,712 B2Sumida Corporation
- Power inductor, preparation method of power inductor, and system in package module15 Sep 2026US 12,738,407 B2Huawei Digital Power Technologies Co., Ltd.
- Transformer15 Sep 2026US 12,738,408 B2Lite-On Technology Corporation
- Flipping coil for wireless power transfer8 Sep 2026US 12,731,720 B2Renesas Electronics America Inc.
- Magnetic component1 Oct 2026US 2026/0302046 A1Delta Electronics, Inc.
- Magnetically-coupling coil component1 Oct 2026US 2026/0302047 A1Taiyo Yuden Co., Ltd.
- Multi-layer inductor and transformer24 Sep 2026US 2026/0290677 A13M Innovative Properties Company
- Inductor17 Sep 2026US 2026/0279632 A1Murata Manufacturing Co., Ltd.
- Methods and apparatus to manufacture a coupled inductor27 Aug 2026US 2026/0253780 A1Intel Corporation
Most cited
By later US patents
- Integrated-magnetic apparatus210US 5,726,615 A1998
- Transformer construction143US 8,410,889 B2Enecsys Limited · 2013
- Installation137US 7,969,045 B2Sew-Eurodrive GmbH & Co. KG · 2011
- Printed circuit transformer123US 7,187,263 B2VLT, Inc. · 2007
- Transformer construction122US 8,917,156 B2Enecsys Limited · 2014