- All sections
- H - Electricity
- H02J - Circuit arrangements or systems for supplying or distributing electric powersystems for storing electric energy
- H02J 9/04 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
Patent holdings for IPC class H02J 9/04
Total number of patents in this class: 405
10-year publication summary
|
23
|
40
|
31
|
18
|
23
|
11
|
26
|
38
|
41
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amazon Technologies, Inc. | 28118 |
12 |
| Shenzhen KaLaiFu Technology Co., Ltd. | 16 |
12 |
| Huawei Technologies Co., Ltd. | 123543 |
10 |
| Eaton Intelligent Power Limited | 6257 |
8 |
| Savant Systems, Inc. | 257 |
8 |
| ABB Schweiz AG | 7621 |
7 |
| Schneider Electric IT Corporation | 791 |
7 |
| Delta Electronics, Inc. | 2830 |
6 |
| Hewlett Packard Enterprise Development LP | 11501 |
6 |
| Microsoft Technology Licensing, LLC | 54463 |
5 |
| Huawei Digital Power Technologies Co. Ltd. | 2551 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
4 |
| FFP2018, Inc. | 9 |
4 |
| Moxion Power Co. | 18 |
4 |
| Toyota Motor Corporation | 35813 |
3 |
| ZTE Corporation | 44199 |
3 |
| Hubbell Incorporated | 3448 |
3 |
| ABL IP Holding LLC | 1887 |
3 |
| Contemporary Amperex Technology Co., Limited | 10003 |
3 |
| Liebert Corporation | 79 |
3 |
| Other owners | 289 |