- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converterscontrolling transformers, reactors or choke coils
- H02P 9/42 - Arrangements for controlling electric generators for the purpose of obtaining a desired output to obtain desired frequency without varying speed of the generator
Patent holdings for IPC class H02P 9/42
Total number of patents in this class: 67
10-year publication summary
|
8
|
4
|
5
|
10
|
8
|
6
|
4
|
4
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Boeing Company | 20098 |
4 |
| Lenze Drives GmbH | 46 |
4 |
| Wobben Properties GmbH | 1218 |
4 |
| Siemens Gamesa Renewable Energy A/S | 1895 |
4 |
| Hamilton Sundstrand Corporation | 4902 |
3 |
| Differential Dynamics Corporation | 25 |
3 |
| Discovery Energy, LLC | 381 |
3 |
| Siemens AG | 24436 |
2 |
| Kawasaki Heavy Industries, Limited | 1650 |
2 |
| Acciona Windpower, S.A. | 20 |
2 |
| Generac Power Systems, Inc. | 375 |
2 |
| Schweitzer Engineering Laboratories, Inc. | 915 |
2 |
| GE Infrastructure Technology, LLC | 6241 |
2 |
| EC-Power A/S | 13 |
2 |
| Vestas Wind Systems A/S | 3687 |
2 |
| Holcomb Scientific Research Limited | 14 |
2 |
| General Electric Company | 13807 |
1 |
| Toshiba Corporation | 12383 |
1 |
| Mitsubishi Electric Corporation | 46295 |
1 |
| Rolls-Royce PLC | 3125 |
1 |
| Other owners | 20 |