H01F 17/00
Fixed inductances of the signal type
H01F17/00 (Fixed inductances of the signal type) appears on 7,130 US grants and 8,612 published applications in this corpus.
Search patents in H01F- Granted patents
- 7,130
- Published applications
- 8,612
- Assignees
- 1,513
- Inventors
- 10,498
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 12 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 8 | 0 |
| 1981 | 13 | 0 |
| 1982 | 12 | 0 |
| 1983 | 4 | 0 |
| 1984 | 11 | 0 |
| 1985 | 15 | 0 |
| 1986 | 9 | 0 |
| 1987 | 15 | 0 |
| 1988 | 20 | 0 |
| 1989 | 16 | 0 |
| 1990 | 21 | 0 |
| 1991 | 21 | 0 |
| 1992 | 25 | 0 |
| 1993 | 18 | 0 |
| 1994 | 34 | 0 |
| 1995 | 33 | 0 |
| 1996 | 54 | 0 |
| 1997 | 34 | 0 |
| 1998 | 56 | 0 |
| 1999 | 62 | 0 |
| 2000 | 93 | 0 |
| 2001 | 91 | 49 |
| 2002 | 129 | 172 |
| 2003 | 155 | 182 |
| 2004 | 170 | 239 |
| 2005 | 161 | 205 |
| 2006 | 189 | 232 |
| 2007 | 164 | 245 |
| 2008 | 174 | 237 |
| 2009 | 158 | 249 |
| 2010 | 209 | 246 |
| 2011 | 210 | 200 |
| 2012 | 190 | 161 |
| 2013 | 163 | 287 |
| 2014 | 181 | 293 |
| 2015 | 183 | 314 |
| 2016 | 229 | 387 |
| 2017 | 247 | 407 |
| 2018 | 319 | 512 |
| 2019 | 371 | 580 |
| 2020 | 390 | 602 |
| 2021 | 374 | 516 |
| 2022 | 429 | 541 |
| 2023 | 503 | 498 |
| 2024 | 466 | 534 |
| 2025 | 433 | 433 |
| 2026 | 234 | 291 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Coil component and IC card having the same6 Oct 2026US 12,755,129 B2TDK Corporation
- Thin film inductor element and thin film variable inductor element6 Oct 2026US 12,755,882 B2Japan Atomic Energy Agency
- Inductor coil and forming method thereof6 Oct 2026US 12,755,885 B2Semiconductor Manufacturing International (Shanghai) Corporation
- Laminated electronic component6 Oct 2026US 12,755,891 B2TDK Corporation
- Electronic component6 Oct 2026US 12,755,893 B2Murata Manufacturing Co., Ltd.
- Magnetic paste, circuit member, and method for manufacturing circuit member8 Oct 2026US 2026/0311919 A1
- Choke for a multi-conductor system8 Oct 2026US 2026/0311924 A1TDK Electronics Co., Ltd.
- Electronic component8 Oct 2026US 2026/0311928 A1TDK Corporation
- Filter, preparation method thereof, and electronic apparatus8 Oct 2026US 2026/0312561 A1Beijing BOE Sensor Technology Co., Ltd.
- Method of manufacturing a coil component1 Oct 2026US 2026/0295668 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Planar resonator for wireless power transfer610US 6,960,968 B2Koninklijke Philips Electronics N. V. · 2005
- Electrically active resonant structures for wireless monitoring and control328US 6,025,725 AMassachusetts Institute of Technology · 2000
- Inductive battery charger system with primary transformer windings formed in a multi-layer structure297US 7,164,255 B2City University of Hong Kong · 2007
- Planar inductor265US 4,959,631 AKabushiki Kaisha Toshiba · 1990
- Method of manufacturing a planar coil construction246US 5,142,767 AThe B. F. Goodrich Company · 1992