- 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: 1223
10-year publication summary
|
86
|
81
|
80
|
103
|
134
|
80
|
104
|
124
|
139
|
92
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Strong Force TX Portfolio 2018, LLC | 151 |
37 |
| Siemens AG | 24477 |
21 |
| Hitachi, Ltd. | 15495 |
15 |
| Xi'an Thermal Power Research Institute Co., Ltd. | 340 |
13 |
| Huawei Digital Power Technologies Co. Ltd. | 2190 |
12 |
| State Grid Corporation of China | 1369 |
11 |
| Siemens Energy Global GmbH & Co. KG | 2969 |
11 |
| Hitachi Energy Ltd. | 2227 |
11 |
| Mitsubishi Electric Corporation | 46127 |
10 |
| Kyocera Corporation | 13831 |
10 |
| Enel X North America, Inc. | 126 |
10 |
| NEC Corporation | 35687 |
9 |
| ABB Schweiz AG | 6976 |
9 |
| Contemporary Amperex Technology Co., Limited | 6643 |
9 |
| Vestas Wind Systems A/S | 3679 |
9 |
| General Electric Company | 13793 |
8 |
| Robert Bosch GmbH | 42684 |
8 |
| Toshiba Energy Systems & Solutions Corp. | 1079 |
8 |
| Panasonic Intellectual Property Management Co., Ltd. | 31475 |
7 |
| Johnson Controls Technology Company | 1425 |
7 |
| Other owners | 988 |