- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converters; controlling transformers, reactors or choke coils
- H02P 23/28 - Controlling the motor by varying the switching frequency of switches connected to a DC supply and the motor phases
Patent holdings for IPC class H02P 23/28
Total number of patents in this class: 40
10-year publication summary
|
6
|
2
|
4
|
4
|
0
|
5
|
4
|
10
|
6
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 40953 |
5 |
| Regal Beloit America, Inc. | 939 |
4 |
| Mitsubishi Electric Corporation | 43934 |
3 |
| GM Global Technology Operations LLC | 13620 |
2 |
| Kabushiki Kaisha Yaskawa Denki | 1468 |
2 |
| Toyota Motor Corporation | 28582 |
1 |
| Toshiba Corporation | 12017 |
1 |
| Hyundai Motor Company | 19021 |
1 |
| Daikin Industries, Ltd. | 9495 |
1 |
| Rockwell Automation Technologies, Inc. | 2547 |
1 |
| Makita Corporation | 2339 |
1 |
| Atieva, Inc. | 328 |
1 |
| Cilag GmbH International | 5813 |
1 |
| Emerson Climate Technologies, Inc. | 308 |
1 |
| Exro Technologies Inc. | 55 |
1 |
| Nidec Motor Corporation | 527 |
1 |
| Sanden Corporation | 859 |
1 |
| Valeo Systemes de Controle Moteur | 614 |
1 |
| Volvo Lastvagnar AB | 922 |
1 |
| Minebea Mitsumi Inc. | 1461 |
1 |
| Other owners | 9 |