- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converterscontrolling transformers, reactors or choke coils
- H02P 21/13 - Observer control, e.g. using Luenberger observers or Kalman filters
Patent holdings for IPC class H02P 21/13
Total number of patents in this class: 274
10-year publication summary
|
12
|
6
|
17
|
27
|
33
|
31
|
30
|
26
|
26
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 45998 |
11 |
| NSK Ltd. | 2771 |
8 |
| Deere & Company | 7592 |
6 |
| IFP Energies Nouvelles | 2945 |
6 |
| Black & Decker, Inc. | 2411 |
5 |
| The Trustees of Columbia University in the City of New York | 3565 |
5 |
| ABB Schweiz AG | 6942 |
5 |
| Huazhong University of Science and Technology | 1043 |
5 |
| Kabushiki Kaisha Yaskawa Denki | 1481 |
5 |
| Midea Group Co., Ltd. | 4536 |
5 |
| Robert Bosch GmbH | 42647 |
4 |
| Nissan Motor Co., Ltd. | 12453 |
4 |
| Rockwell Automation Technologies, Inc. | 2717 |
4 |
| Board of Regents of the University of Nebraska | 755 |
4 |
| ebm-papst Mulfingen GmbH & Co. KG | 610 |
4 |
| Microchip Technology Incorporated | 2857 |
4 |
| Nidec Corporation | 2658 |
4 |
| RENAULT s.a.s. | 5449 |
4 |
| Safran Electrical & Power | 682 |
4 |
| Siemens Gamesa Renewable Energy A/S | 1871 |
4 |
| Other owners | 173 |