- 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: 1388
10-year publication summary
|
75
|
77
|
101
|
128
|
76
|
99
|
115
|
138
|
152
|
76
|
| 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 | 156 |
39 |
| Guangdong Power Grid Co., Ltd. | 178 |
21 |
| Siemens AG | 24236 |
20 |
| Xi'an Thermal Power Research Institute Co., Ltd. | 436 |
17 |
| Hitachi, Ltd. | 15881 |
16 |
| Siemens Energy Global GmbH & Co. KG | 3244 |
16 |
| Contemporary Amperex Technology Co., Limited | 8931 |
15 |
| Hitachi Energy Ltd. | 2461 |
15 |
| Vestas Wind Systems A/S | 3753 |
14 |
| Huawei Digital Power Technologies Co. Ltd. | 2446 |
13 |
| State Grid Corporation of China | 1385 |
12 |
| Mitsubishi Electric Corporation | 47556 |
11 |
| Kyocera Corporation | 14241 |
10 |
| ABB Schweiz AG | 7429 |
10 |
| Enel X North America, Inc. | 126 |
10 |
| NEC Corporation | 36611 |
9 |
| Contemporary Amperex Future Energy Research Institute (Shanghai) Limited | 239 |
9 |
| General Electric Company | 13819 |
8 |
| Robert Bosch GmbH | 43554 |
8 |
| Caterpillar Inc. | 10118 |
8 |
| Other owners | 1107 |