- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection of materials for their magnetic properties
- H01F 3/00 - Cores, yokes or armatures
Patent holdings for IPC class H01F 3/00
Total number of patents in this class: 312
10-year publication summary
|
47
|
17
|
21
|
24
|
21
|
27
|
16
|
13
|
10
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| WiTricity Corporation | 514 |
22 |
| Denso Corporation | 23338 |
8 |
| TDK Corporation | 6306 |
7 |
| ETO Magnetic GmbH | 247 |
7 |
| Toyota Motor Corporation | 28582 |
6 |
| Schaeffler Technologies AG & Co. KG | 8880 |
5 |
| American Axle & Manufacturing, Inc. | 649 |
5 |
| Tamura Corporation | 350 |
5 |
| Hitachi Energy Ltd. | 1921 |
5 |
| Robert Bosch GmbH | 40953 |
4 |
| ABB Schweiz AG | 6321 |
4 |
| Premo S.L. | 31 |
4 |
| Eaton Intelligent Power Limited | 6113 |
4 |
| Apple Inc. | 50209 |
3 |
| Qualcomm Incorporated | 76576 |
3 |
| Honeywell International Inc. | 13799 |
3 |
| National Semiconductor Corporation | 1411 |
3 |
| LG Innotek Co., Ltd. | 6758 |
3 |
| Fractal Antenna Systems, Inc. | 58 |
3 |
| Power Integrations, Inc. | 527 |
3 |
| Other owners | 205 |