- All sections
- H - Electricity
- H02J - Circuit arrangements or systems for supplying or distributing electric powersystems for storing electric energy
- H02J 3/44 - Synchronising a generator for connection to a network or to another generator with means for ensuring correct phase sequence
Patent holdings for IPC class H02J 3/44
Total number of patents in this class: 94
10-year publication summary
|
7
|
4
|
8
|
6
|
9
|
5
|
6
|
8
|
16
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47683 |
3 |
| ABB Schweiz AG | 7491 |
3 |
| GridBridge, Inc. | 10 |
3 |
| Schweitzer Engineering Laboratories, Inc. | 905 |
3 |
| Wobben Properties GmbH | 1220 |
3 |
| Guizhou Power Grid Company Limited | 181 |
3 |
| General Electric Company | 13816 |
2 |
| Siemens Corporation | 557 |
2 |
| S & C Electric Co. | 279 |
2 |
| SMA Solar Technology AG | 893 |
2 |
| Sungrow Power Supply Co., Ltd. | 693 |
2 |
| The University of North Carolina at Charlotte | 270 |
2 |
| GE Renewable Technologies | 112 |
2 |
| Eaton Intelligent Power Limited | 6193 |
2 |
| Brek Electronics Corporation | 6 |
2 |
| DG Capital Group Co. Ltd. | 4 |
2 |
| Siemens AG | 24177 |
1 |
| The Boeing Company | 20094 |
1 |
| NEC Corporation | 36733 |
1 |
| Hitachi, Ltd. | 15920 |
1 |
| Other owners | 52 |