- 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: 739
10-year publication summary
|
53
|
50
|
64
|
53
|
70
|
48
|
53
|
57
|
54
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Energy Ltd. | 2394 |
39 |
| Mitsubishi Electric Corporation | 47302 |
30 |
| LG Innotek Co., Ltd. | 8023 |
16 |
| CTM Magnetics, Inc. | 23 |
15 |
| MAHLE International GmbH | 2841 |
15 |
| Sumitomo Electric Industries, Ltd. | 15941 |
14 |
| ABB Schweiz AG | 7299 |
14 |
| ABB Technology AG | 1237 |
14 |
| Sumitomo Wiring Systems, Ltd. | 10686 |
12 |
| Hamilton Sundstrand Corporation | 4994 |
12 |
| AutoNetworks Technologies, Ltd. | 6858 |
12 |
| Fuji Electric Co., Ltd. | 5313 |
11 |
| Siemens AG | 24294 |
10 |
| Siemens Energy Global GmbH & Co. KG | 3151 |
10 |
| Murata Manufacturing Co., Ltd. | 25214 |
9 |
| TDK Corporation | 6771 |
9 |
| Delta Electronics (Shanghai) Co., Ltd. | 742 |
9 |
| Denso Corporation | 24965 |
8 |
| BRUSA Elektronik AG | 123 |
8 |
| SKC Co., Ltd. | 323 |
8 |
| Other owners | 464 |