- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converterscontrolling transformers, reactors or choke coils
- H02P 21/16 - Estimation of constants, e.g. the rotor time constant
Patent holdings for IPC class H02P 21/16
Total number of patents in this class: 121
10-year publication summary
|
4
|
5
|
6
|
19
|
16
|
18
|
13
|
12
|
10
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Industrial Equipment Systems Co., Ltd. | 1465 |
12 |
| Mitsubishi Electric Corporation | 46346 |
7 |
| Robert Bosch GmbH | 42784 |
6 |
| GM Global Technology Operations LLC | 15133 |
5 |
| Denso Corporation | 24404 |
5 |
| Samsung Electronics Co., Ltd. | 147334 |
3 |
| Infineon Technologies Austria AG | 2164 |
3 |
| Kabushiki Kaisha Yaskawa Denki | 1476 |
3 |
| Schneider Toshiba Inverter Europe SAS | 135 |
3 |
| Danfoss Power Electronics A/S | 120 |
3 |
| Deere & Company | 7636 |
2 |
| Hyundai Motor Company | 22200 |
2 |
| Rockwell Automation Technologies, Inc. | 2727 |
2 |
| NSK Ltd. | 2790 |
2 |
| ABB Schweiz AG | 7023 |
2 |
| Huazhong University of Science and Technology | 1063 |
2 |
| Lsis Co., Ltd. | 816 |
2 |
| Nidec Corporation | 2669 |
2 |
| Volvo Truck Corporation | 3438 |
2 |
| Wobben Properties GmbH | 1218 |
2 |
| Other owners | 51 |