- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 9/18 - Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing
Patent holdings for IPC class H02K 9/18
Total number of patents in this class: 163
10-year publication summary
|
16
|
8
|
18
|
17
|
14
|
10
|
10
|
11
|
10
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24344 |
23 |
| Innomotics GmbH | 537 |
8 |
| ABB Schweiz AG | 7139 |
7 |
| Mitsubishi Electric Corporation | 46765 |
6 |
| Hamilton Sundstrand Corporation | 4950 |
4 |
| Siemens Gamesa Renewable Energy A/S | 1903 |
4 |
| Ingersoll-Rand Industrial U.S., Inc. | 513 |
4 |
| Bayerische Motoren Werke Aktiengesellschaft | 14620 |
3 |
| Beijing GoldWind Science & Creation Windpower Equipment Co., Ltd. | 369 |
3 |
| Canrig Drilling Technology Ltd. | 72 |
3 |
| Franklin Electric Co., Inc. | 224 |
3 |
| IFP Energies Nouvelles | 2969 |
3 |
| Typhon Technology Solutions (U.S.), LLC | 97 |
3 |
| LG Electronics Inc. | 73619 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8851 |
2 |
| Hitachi, Ltd. | 15632 |
2 |
| Denso Corporation | 24692 |
2 |
| Alstom Holdings | 620 |
2 |
| ABB Technology AG | 1247 |
2 |
| Hamilton Sundstrand Space Systems International, Inc. | 103 |
2 |
| Other owners | 75 |