- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converterscontrolling transformers, reactors or choke coils
- H02P 25/024 - Synchronous motors controlled by supply frequency
Patent holdings for IPC class H02P 25/024
Total number of patents in this class: 145
10-year publication summary
|
6
|
8
|
17
|
28
|
18
|
18
|
12
|
14
|
13
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denso Corporation | 24387 |
14 |
| Robert Bosch GmbH | 42742 |
5 |
| Mitsubishi Electric Corporation | 46295 |
4 |
| Daikin Industries, Ltd. | 10047 |
4 |
| Hitachi Astemo, Ltd. | 6385 |
4 |
| Toyota Motor Corporation | 32599 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8777 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 31696 |
3 |
| ABB Schweiz AG | 7009 |
3 |
| Quanten Technologies, Inc. | 17 |
3 |
| Johnson Controls Tyco IP Holdings LLP | 634 |
3 |
| Zhejiang Keenwoo Technology Co., Ltd. | 3 |
3 |
| Siemens AG | 24436 |
2 |
| Hitachi Automotive Systems, Ltd. | 3955 |
2 |
| Hyundai Motor Company | 22167 |
2 |
| Bayerische Motoren Werke Aktiengesellschaft | 14440 |
2 |
| Purdue Research Foundation | 3646 |
2 |
| Accessesp UK Limited | 29 |
2 |
| CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd. | 85 |
2 |
| Hitachi Mitsubishi Hydro Corporation | 34 |
2 |
| Other owners | 77 |