- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 30/04 - Fixed transformers not covered by group having two or more secondary windings, each supplying a separate load, e.g. for radio set power supplies
Patent holdings for IPC class H01F 30/04
Total number of patents in this class: 62
10-year publication summary
|
5
|
4
|
10
|
7
|
6
|
3
|
3
|
1
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ABB Technology AG | 1264 |
3 |
| Robert Bosch GmbH | 41933 |
2 |
| TDK Corporation | 6573 |
2 |
| City University of Hong Kong | 785 |
2 |
| Delta Electronics (Thailand) Public Co., Ltd. | 87 |
2 |
| Tamura Corporation | 352 |
2 |
| Hitachi Energy Ltd. | 2250 |
2 |
| Siemens AG | 24556 |
1 |
| The Boeing Company | 19959 |
1 |
| Texas Instruments Incorporated | 19430 |
1 |
| Koninklijke Philips Electronics N.V. | 10656 |
1 |
| Infineon Technologies Austria AG | 2082 |
1 |
| Mitsubishi Electric Corporation | 45068 |
1 |
| Tokyo Electron Limited | 12192 |
1 |
| LG Innotek Co., Ltd. | 7301 |
1 |
| Rolls-Royce PLC | 3010 |
1 |
| Johnson Controls Technology Company | 1471 |
1 |
| ABL IP Holding LLC | 1908 |
1 |
| Astronics Advanced Electronic Systems Corp. | 94 |
1 |
| Badger Explorer ASA | 8 |
1 |
| Other owners | 34 |