- All sections
- H - Electricity
- H02J - Circuit arrangements or systems for supplying or distributing electric powersystems for storing electric energy
- H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
Patent holdings for IPC class H02J 3/00
Total number of patents in this class: 8464
10-year publication summary
|
578
|
484
|
489
|
569
|
562
|
659
|
694
|
722
|
827
|
452
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi, Ltd. | 16094 |
305 |
| Siemens AG | 24029 |
196 |
| Mitsubishi Electric Corporation | 48018 |
161 |
| NEC Corporation | 37004 |
131 |
| Panasonic Intellectual Property Management Co., Ltd. | 33997 |
127 |
| Hitachi Energy Ltd. | 2579 |
102 |
| Kyocera Corporation | 14359 |
89 |
| ABB Schweiz AG | 7607 |
75 |
| Eaton Intelligent Power Limited | 6243 |
72 |
| Vestas Wind Systems A/S | 3796 |
67 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6178 |
67 |
| State Grid Corporation of China | 1399 |
63 |
| Huawei Digital Power Technologies Co. Ltd. | 2550 |
63 |
| Causam Enterprises, Inc. | 132 |
62 |
| Rondo Energy, Inc. | 95 |
62 |
| International Business Machines Corporation | 62634 |
58 |
| Enel X North America, Inc. | 127 |
56 |
| Toyota Motor Corporation | 35772 |
55 |
| Honda Motor Co., Ltd. | 26025 |
52 |
| Lutron Technology Company LLC | 2749 |
52 |
| Other owners | 6549 |