- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 9/197 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
Patent holdings for IPC class H02K 9/197
Total number of patents in this class: 580
10-year publication summary
|
25
|
30
|
39
|
42
|
66
|
68
|
62
|
75
|
68
|
29
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schaeffler Technologies AG & Co. KG | 11069 |
36 |
| Siemens AG | 23996 |
22 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2823 |
18 |
| MAHLE International GmbH | 2920 |
18 |
| Audi AG | 7568 |
15 |
| Robert Bosch GmbH | 44238 |
13 |
| ZF Friedrichshafen AG | 7254 |
13 |
| Hamilton Sundstrand Corporation | 5014 |
12 |
| Bayerische Motoren Werke Aktiengesellschaft | 15349 |
10 |
| Honda Motor Co., Ltd. | 26090 |
9 |
| Ampere S.A.S. | 700 |
9 |
| Falcon Power, LLC | 32 |
8 |
| GE Aviation Systems LLC | 592 |
8 |
| Tesla, Inc. | 2011 |
8 |
| Flender GmbH | 423 |
8 |
| Deere & Company | 8138 |
7 |
| Siemens Energy, Inc. | 1685 |
7 |
| Magna Powertrain GmbH & Co KG | 357 |
7 |
| General Electric Company | 13912 |
6 |
| Denso Corporation | 25633 |
6 |
| Other owners | 340 |