- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 3/487 - Slot-closing devices
Patent holdings for IPC class H02K 3/487
Total number of patents in this class: 347
10-year publication summary
|
18
|
19
|
19
|
39
|
23
|
27
|
44
|
32
|
38
|
43
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schaeffler Technologies AG & Co. KG | 9967 |
27 |
| Robert Bosch GmbH | 42784 |
20 |
| Bayerische Motoren Werke Aktiengesellschaft | 14446 |
19 |
| Black & Decker, Inc. | 2410 |
11 |
| Hamilton Sundstrand Corporation | 4906 |
11 |
| Siemens AG | 24421 |
9 |
| Siemens Energy, Inc. | 1707 |
9 |
| Evr Motors Ltd. | 23 |
8 |
| Siemens Gamesa Renewable Energy A/S | 1897 |
7 |
| Denso Corporation | 24404 |
5 |
| Hyundai Motor Company | 22200 |
5 |
| Nidec Corporation | 2669 |
5 |
| Rolls-Royce Deutschland Ltd & Co KG | 818 |
5 |
| Valeo Equipements Electriques Moteur | 997 |
5 |
| GE Infrastructure Technology, LLC | 6247 |
5 |
| Mitsubishi Generator Co., Ltd. | 147 |
5 |
| Ford Global Technologies, LLC | 20682 |
4 |
| Audi AG | 7372 |
4 |
| MAHLE International GmbH | 2779 |
4 |
| Nidec Motor Corporation | 528 |
4 |
| Other owners | 175 |