- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 27/42 - Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors or choke coils
Patent holdings for IPC class H01F 27/42
Total number of patents in this class: 1240
10-year publication summary
|
145
|
109
|
49
|
49
|
36
|
30
|
15
|
18
|
15
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Witricity AI Tech, LLC | 425 |
56 |
| Samsung Electronics Co., Ltd. | 159473 |
54 |
| Qualcomm Incorporated | 93847 |
40 |
| Energous Corporation | 412 |
33 |
| Toyota Motor Corporation | 36389 |
29 |
| TDK Corporation | 7043 |
27 |
| Sony Corporation | 29887 |
24 |
| Murata Manufacturing Co., Ltd. | 25998 |
22 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 23799 |
22 |
| Philips IP Ventures B.V. | 89 |
21 |
| Intel Corporation | 46327 |
20 |
| Canon Inc. | 44490 |
19 |
| Panasonic Intellectual Property Management Co., Ltd. | 34623 |
19 |
| Powermat Technologies Ltd. | 168 |
17 |
| Siemens Energy Global GmbH & Co. KG | 3517 |
16 |
| Wins Co., Ltd | 186 |
15 |
| LG Electronics Inc. | 76299 |
14 |
| Koninklijke Philips N.V. | 26108 |
14 |
| Siemens AG | 23934 |
13 |
| NERA Innovations Limited | 133 |
13 |
| Other owners | 752 |