- 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: 8115
10-year publication summary
|
535
|
562
|
471
|
477
|
558
|
556
|
655
|
694
|
730
|
780
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi, Ltd. | 15692 |
292 |
| Siemens AG | 24333 |
194 |
| Mitsubishi Electric Corporation | 46926 |
153 |
| NEC Corporation | 36257 |
130 |
| Panasonic Intellectual Property Management Co., Ltd. | 32457 |
118 |
| Hitachi Energy Ltd. | 2331 |
90 |
| Kyocera Corporation | 14083 |
89 |
| ABB Schweiz AG | 7178 |
78 |
| Eaton Intelligent Power Limited | 6047 |
68 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6234 |
67 |
| Vestas Wind Systems A/S | 3715 |
64 |
| Huawei Digital Power Technologies Co. Ltd. | 2320 |
62 |
| State Grid Corporation of China | 1379 |
61 |
| Causam Enterprises, Inc. | 126 |
60 |
| International Business Machines Corporation | 61721 |
58 |
| Enel X North America, Inc. | 127 |
58 |
| Rondo Energy, Inc. | 78 |
55 |
| Honda Motor Co., Ltd. | 25780 |
52 |
| GE Infrastructure Technology, LLC | 6190 |
52 |
| Lutron Technology Company LLC | 2610 |
50 |
| Other owners | 6264 |