- All sections
- H - Electricity
- H02J - Circuit arrangements or systems for supplying or distributing electric power; systems for storing electric energy
- H02J 3/12 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
Patent holdings for IPC class H02J 3/12
Total number of patents in this class: 678
10-year publication summary
|
76
|
56
|
56
|
55
|
48
|
40
|
32
|
43
|
47
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 44794 |
25 |
| Hitachi, Ltd. | 15220 |
22 |
| Lancium, LLC | 98 |
14 |
| Siemens AG | 24573 |
13 |
| Toshiba Energy Systems & Solutions Corp. | 1026 |
11 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6227 |
11 |
| ABB Schweiz AG | 6624 |
10 |
| State Grid Corporation of China | 1347 |
10 |
| Vestas Wind Systems A/S | 3578 |
10 |
| Dominion Energy, Inc | 166 |
8 |
| Eaton Intelligent Power Limited | 6296 |
8 |
| NEC Corporation | 34371 |
7 |
| Korea Electric Power Corporation | 468 |
7 |
| Wobben Properties GmbH | 1211 |
7 |
| GE Digital Holdings LLC | 347 |
7 |
| Lutron Technology Company LLC | 2421 |
7 |
| Battelle Memorial Institute | 2417 |
6 |
| General Electric Technology GmbH | 1599 |
6 |
| Kyocera Corporation | 13335 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 29687 |
5 |
| Other owners | 479 |