- All sections
- H - Electricity
- H02J - Circuit arrangements or systems for supplying or distributing electric powersystems for storing electric energy
- H02J 3/02 - Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of power at different frequenciesCircuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of ac power and of dc power
Patent holdings for IPC class H02J 3/02
Total number of patents in this class: 307
10-year publication summary
|
22
|
21
|
26
|
22
|
21
|
18
|
32
|
21
|
23
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Innotek Co., Ltd. | 8525 |
18 |
| Siemens AG | 23983 |
6 |
| Microsoft Technology Licensing, LLC | 54524 |
6 |
| Delta Electronics, Inc. | 2850 |
5 |
| Pucline, LLC | 8 |
5 |
| Huawei Digital Power Technologies Co. Ltd. | 2557 |
5 |
| Dolby Intellectual Property Licensing, LLC | 119 |
5 |
| Halliburton Energy Services, Inc. | 21296 |
4 |
| Rolls-Royce PLC | 3222 |
4 |
| Boltier R&D Inc. | 4 |
4 |
| Signify Holding B.V. | 8146 |
4 |
| DG Matrix, Inc. | 22 |
4 |
| Oshkosh Aerotech, LLC | 51 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 34335 |
3 |
| Alstom Technology Ltd | 1035 |
3 |
| Belkin International, Inc. | 313 |
3 |
| Chargepoint, Inc. | 148 |
3 |
| Enatel Limited | 30 |
3 |
| GridBridge, Inc. | 10 |
3 |
| Guangdong University of Technology | 666 |
3 |
| Other owners | 212 |