- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection of materials for their magnetic properties
- H01F 27/08 - Cooling; Ventilating
Patent holdings for IPC class H01F 27/08
Total number of patents in this class: 654
10-year publication summary
|
55
|
62
|
57
|
52
|
69
|
56
|
71
|
44
|
51
|
19
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 43934 |
30 |
| Hitachi Energy Ltd. | 1921 |
29 |
| CTM Magnetics, Inc. | 45 |
21 |
| ABB Technology AG | 1301 |
16 |
| Sumitomo Electric Industries, Ltd. | 14131 |
14 |
| Hamilton Sundstrand Corporation | 4525 |
13 |
| ABB Schweiz AG | 6321 |
13 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
13 |
| Siemens AG | 24990 |
12 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
12 |
| AutoNetworks Technologies, Ltd. | 5809 |
12 |
| Fuji Electric Co., Ltd. | 4750 |
11 |
| LG Innotek Co., Ltd. | 6758 |
10 |
| Denso Corporation | 23338 |
8 |
| Murata Manufacturing Co., Ltd. | 22355 |
8 |
| SKC Co., Ltd. | 311 |
8 |
| General Electric Company | 18133 |
7 |
| Toyota Motor Corporation | 28582 |
7 |
| Delta Electronics (Shanghai) Co., Ltd. | 611 |
7 |
| MAHLE International GmbH | 2670 |
7 |
| Other owners | 396 |