- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 27/08 - CoolingVentilating
Patent holdings for IPC class H01F 27/08
Total number of patents in this class: 743
10-year publication summary
|
57
|
52
|
69
|
56
|
72
|
48
|
54
|
58
|
55
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Energy Ltd. | 2510 |
40 |
| Mitsubishi Electric Corporation | 47683 |
30 |
| LG Innotek Co., Ltd. | 8232 |
16 |
| CTM Magnetics, Inc. | 23 |
15 |
| MAHLE International GmbH | 2885 |
15 |
| Sumitomo Electric Industries, Ltd. | 16145 |
14 |
| ABB Schweiz AG | 7491 |
14 |
| ABB Technology AG | 1233 |
14 |
| Sumitomo Wiring Systems, Ltd. | 10818 |
12 |
| Hamilton Sundstrand Corporation | 5017 |
12 |
| AutoNetworks Technologies, Ltd. | 6965 |
12 |
| Fuji Electric Co., Ltd. | 5409 |
11 |
| Siemens AG | 24177 |
10 |
| Murata Manufacturing Co., Ltd. | 25588 |
10 |
| Siemens Energy Global GmbH & Co. KG | 3281 |
10 |
| TDK Corporation | 6818 |
9 |
| Delta Electronics (Shanghai) Co., Ltd. | 761 |
9 |
| Denso Corporation | 25283 |
8 |
| BRUSA Elektronik AG | 129 |
8 |
| SKC Co., Ltd. | 326 |
8 |
| Other owners | 466 |