- 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 means for preventing leakage of the cooling medium
Patent holdings for IPC class H02K 9/193
Total number of patents in this class: 385
10-year publication summary
|
15
|
8
|
17
|
26
|
34
|
53
|
57
|
60
|
73
|
26
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nidec Corporation | 2579 |
25 |
| Tesla, Inc. | 1519 |
15 |
| Honda Motor Co., Ltd. | 24537 |
13 |
| Toyota Motor Corporation | 28582 |
11 |
| ZF Friedrichshafen AG | 6820 |
11 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2487 |
11 |
| Hyundai Motor Company | 19021 |
10 |
| Hamilton Sundstrand Corporation | 4525 |
9 |
| Schaeffler Technologies AG & Co. KG | 8880 |
8 |
| BorgWarner Inc. | 2604 |
8 |
| Siemens AG | 24990 |
7 |
| Jing-jin Electric Technologies Co., Ltd. | 181 |
7 |
| LG Magna E-powertrain Co., Ltd. | 66 |
7 |
| Nissan Motor Co., Ltd. | 12249 |
6 |
| ABB Schweiz AG | 6321 |
6 |
| Dynamic e Flow GmbH | 18 |
6 |
| Robert Bosch GmbH | 40953 |
5 |
| GM Global Technology Operations LLC | 13620 |
5 |
| Bayerische Motoren Werke Aktiengesellschaft | 13126 |
5 |
| Kia Motors Corporation | 7946 |
5 |
| Other owners | 205 |