- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection of materials for their magnetic properties
- H01F 38/14 - Inductive couplings
Patent holdings for IPC class H01F 38/14
Total number of patents in this class: 4496
10-year publication summary
|
524
|
480
|
503
|
546
|
482
|
371
|
345
|
312
|
179
|
50
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 131630 |
188 |
| WiTricity Corporation | 514 |
144 |
| Apple Inc. | 50209 |
134 |
| Qualcomm Incorporated | 76576 |
94 |
| Murata Manufacturing Co., Ltd. | 22355 |
87 |
| Nucurrent, Inc. | 294 |
86 |
| LG Innotek Co., Ltd. | 6758 |
81 |
| Auckland UniServices Limited | 503 |
81 |
| LG Electronics Inc. | 69257 |
79 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
77 |
| Panasonic Corporation | 20786 |
72 |
| Toyota Motor Corporation | 28582 |
66 |
| TDK Corporation | 6306 |
65 |
| IHI Corporation | 3268 |
64 |
| Amosense Co., Ltd. | 433 |
57 |
| Yazaki Corporation | 6282 |
48 |
| NERA Innovations Limited | 150 |
45 |
| Wins Co., Ltd | 183 |
44 |
| Sony Corporation | 32931 |
42 |
| Powermat Technologies Ltd. | 158 |
42 |
| Other owners | 2900 |