- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 9/193 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling mediumArrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with means for preventing leakage of the cooling medium
Patent holdings for IPC class H02K 9/193
Total number of patents in this class: 520
10-year publication summary
|
17
|
24
|
34
|
52
|
55
|
63
|
75
|
72
|
81
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nidec Corporation | 2731 |
23 |
| Toyota Motor Corporation | 33951 |
20 |
| Honda Motor Co., Ltd. | 25773 |
18 |
| Tesla, Inc. | 1830 |
16 |
| ZF Friedrichshafen AG | 7210 |
13 |
| Schaeffler Technologies AG & Co. KG | 10539 |
13 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2810 |
12 |
| Hyundai Motor Company | 23238 |
11 |
| Hamilton Sundstrand Corporation | 5001 |
11 |
| Dana Automotive Systems Group, LLC | 471 |
11 |
| Bayerische Motoren Werke Aktiengesellschaft | 14870 |
9 |
| BorgWarner Inc. | 2598 |
9 |
| Huawei Digital Power Technologies Co. Ltd. | 2386 |
9 |
| BYD Company Limited | 5903 |
8 |
| Jing-jin Electric Technologies Co., Ltd. | 234 |
8 |
| Siemens AG | 24278 |
7 |
| GM Global Technology Operations LLC | 15602 |
7 |
| Audi AG | 7430 |
7 |
| MAHLE International GmbH | 2851 |
7 |
| LG Magna E-powertrain Co., Ltd. | 85 |
7 |
| Other owners | 294 |