- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 9/04 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
Patent holdings for IPC class H02K 9/04
Total number of patents in this class: 492
10-year publication summary
|
54
|
40
|
44
|
53
|
28
|
32
|
36
|
36
|
28
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24386 |
17 |
| Mitsubishi Electric Corporation | 46449 |
16 |
| Black & Decker, Inc. | 2408 |
15 |
| FANUC Corporation | 6771 |
12 |
| Valeo Equipements Electriques Moteur | 993 |
11 |
| Siemens Gamesa Renewable Energy A/S | 1898 |
11 |
| Infinitum Electric Inc. | 87 |
9 |
| Honda Motor Co., Ltd. | 25499 |
8 |
| GoldWind Science & Technology Co., Ltd. | 109 |
6 |
| Hamilton Sundstrand Corporation | 4916 |
5 |
| Flender GmbH | 380 |
5 |
| N.P.S. Company, LLC | 8 |
5 |
| Innomotics GmbH | 517 |
5 |
| Robert Bosch GmbH | 42824 |
4 |
| Aurora Office Equipment Co., Ltd. Shanghai | 36 |
4 |
| Cummins Generator Technologies Limited | 116 |
4 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1464 |
4 |
| Meidensha Corporation | 903 |
4 |
| TA Instruments-Waters L.L.C. | 75 |
4 |
| Wobben Properties GmbH | 1219 |
4 |
| Other owners | 339 |