- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converterscontrolling transformers, reactors or choke coils
- H02P 21/09 - Field phase angle calculation based on rotor voltage equation by adding slip frequency and speed proportional frequency
Patent holdings for IPC class H02P 21/09
Total number of patents in this class: 75
10-year publication summary
|
3
|
3
|
12
|
13
|
9
|
11
|
3
|
9
|
5
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kinetic Technologies International Holdings LP | 77 |
5 |
| Siemens AG | 23983 |
3 |
| Deere & Company | 8160 |
3 |
| Toshiba Corporation | 12625 |
3 |
| TMEIC Corporation | 923 |
3 |
| Infineon Technologies Austria AG | 2351 |
2 |
| NSK Ltd. | 2838 |
2 |
| Arthrex, Inc. | 1724 |
2 |
| Okuma Corporation | 260 |
2 |
| STMicroelectronics International N.V. | 4219 |
2 |
| Safran Electrical & Power | 776 |
2 |
| Toshiba Electronic Devices & Storage Corporation | 2358 |
2 |
| LG Electronics Inc. | 75910 |
1 |
| Hitachi Construction Machinery Co., Ltd. | 2765 |
1 |
| Robert Bosch GmbH | 44252 |
1 |
| GM Global Technology Operations LLC | 16205 |
1 |
| Denso Corporation | 25676 |
1 |
| Infineon Technologies AG | 8410 |
1 |
| Mitsubishi Electric Corporation | 48236 |
1 |
| Delta Electronics, Inc. | 2850 |
1 |
| Other owners | 36 |