- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 3/02 - Cores, yokes or armatures made from sheets
Patent holdings for IPC class H01F 3/02
Total number of patents in this class: 229
10-year publication summary
|
12
|
19
|
25
|
23
|
15
|
21
|
20
|
17
|
19
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24436 |
15 |
| Nippon Steel Corporation | 6296 |
15 |
| JFE Steel Corporation | 6874 |
12 |
| Hitachi Energy Ltd. | 2240 |
9 |
| Atlas Copco Airpower, naamloze vennootschap | 1035 |
7 |
| Voestalpine Stahl GmbH | 357 |
5 |
| 3m Innovative Properties Company | 17813 |
4 |
| Vacuumschmelze GmbH & Co. KG | 261 |
4 |
| Hangnam Co., Ltd. | 6 |
4 |
| Siemens Energy Global GmbH & Co. KG | 2998 |
4 |
| General Electric Company | 13807 |
3 |
| International Business Machines Corporation | 61353 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 31696 |
3 |
| Aichi Steel Corporation | 383 |
3 |
| Aperam | 124 |
3 |
| BMC Co., Ltd. | 52 |
3 |
| Feintool International Holding AG | 97 |
3 |
| Mitsui High-tec, Inc. | 263 |
3 |
| Toshiba Materials Co., Ltd. | 665 |
3 |
| Beijing Naura Microelectronics Equipment Co., Ltd. | 600 |
3 |
| Other owners | 120 |