- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 21/12 - Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
Patent holdings for IPC class H01F 21/12
Total number of patents in this class: 168
10-year publication summary
|
19
|
10
|
12
|
16
|
10
|
10
|
10
|
6
|
15
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Psemi Corporation | 993 |
16 |
| Qualcomm Incorporated | 84971 |
11 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42461 |
11 |
| Ericsson | 21704 |
10 |
| Realtek Semiconductor Corp. | 3278 |
8 |
| Hitachi Energy Ltd. | 2194 |
8 |
| Maschinenfabrik Reinhausen GmbH | 744 |
7 |
| Intel Corporation | 46949 |
5 |
| Nucurrent, Inc. | 348 |
5 |
| Texas Instruments Incorporated | 19480 |
4 |
| Huawei Technologies Co., Ltd. | 111975 |
3 |
| Fujikura Ltd. | 2921 |
3 |
| Telefonaktiebolaget LM Ericsson (publ) | 27855 |
3 |
| Apple Inc. | 54658 |
2 |
| International Business Machines Corporation | 61207 |
2 |
| Ford Global Technologies, LLC | 20520 |
2 |
| Media Tek Singapore Pte. Ltd. | 1074 |
2 |
| The United States of America as represented by the Secretary of the Navy | 2747 |
2 |
| Power Systems Technologies, Ltd. | 18 |
2 |
| Qorvo US, Inc. | 2205 |
2 |
| Other owners | 60 |