- All sections
- H - Electricity
- H02J - Circuit arrangements or systems for supplying or distributing electric powersystems for storing electric energy
- H02J 3/28 - Arrangements for balancing the load in a network by storage of energy
Patent holdings for IPC class H02J 3/28
Total number of patents in this class: 1458
10-year publication summary
|
81
|
81
|
104
|
136
|
80
|
105
|
129
|
146
|
157
|
130
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Strong Force TX Portfolio 2018, LLC | 161 |
39 |
| Guangdong Power Grid Co., Ltd. | 231 |
23 |
| Siemens AG | 23996 |
20 |
| Contemporary Amperex Technology Co., Limited | 10216 |
19 |
| Siemens Energy Global GmbH & Co. KG | 3432 |
18 |
| Hitachi, Ltd. | 16163 |
17 |
| Xi'an Thermal Power Research Institute Co., Ltd. | 456 |
17 |
| Hitachi Energy Ltd. | 2610 |
16 |
| Vestas Wind Systems A/S | 3808 |
14 |
| Huawei Digital Power Technologies Co. Ltd. | 2557 |
13 |
| State Grid Corporation of China | 1404 |
12 |
| Mitsubishi Electric Corporation | 48172 |
11 |
| Kyocera Corporation | 14423 |
11 |
| Contemporary Amperex Future Energy Research Institute (Shanghai) Limited | 299 |
11 |
| ABB Schweiz AG | 7665 |
10 |
| Enel X North America, Inc. | 127 |
10 |
| NEC Corporation | 37168 |
9 |
| Caterpillar Inc. | 10280 |
9 |
| Electrical Power Dispatching & Control Center of Guangdong Power Grid Co., Ltd. | 31 |
9 |
| General Electric Company | 13915 |
8 |
| Other owners | 1162 |