- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 30/12 - Two-phase, three-phase or polyphase transformers
Patent holdings for IPC class H01F 30/12
Total number of patents in this class: 359
10-year publication summary
|
33
|
31
|
36
|
30
|
26
|
27
|
23
|
18
|
17
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Energy Ltd. | 2686 |
26 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1567 |
21 |
| FANUC Corporation | 7490 |
16 |
| ABB Technology AG | 1212 |
12 |
| The Boeing Company | 20237 |
9 |
| Hamilton Sundstrand Corporation | 5013 |
8 |
| Haihong Electric Co., Ltd. | 46 |
8 |
| Safran Electrical & Power | 793 |
8 |
| Enoda Ltd. | 27 |
7 |
| Hitachi, Ltd. | 16272 |
6 |
| Delta Electronics (Shanghai) Co., Ltd. | 780 |
6 |
| Siemens Energy Global GmbH & Co. KG | 3556 |
6 |
| Siemens AG | 23946 |
5 |
| ABB Schweiz AG | 7794 |
5 |
| Ionate Limited | 9 |
5 |
| Hitachi Energy Switzerland AG | 299 |
5 |
| Valeo Eautomotive France SAS | 39 |
5 |
| Sumitomo Electric Industries, Ltd. | 16467 |
4 |
| Mitsubishi Electric Corporation | 48587 |
4 |
| Rockwell Automation Technologies, Inc. | 2801 |
4 |
| Other owners | 189 |