- All sections
- H - Electricity
- H02J - Circuit arrangements or systems for supplying or distributing electric power; systems 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: 313
10-year publication summary
|
29
|
29
|
23
|
40
|
31
|
18
|
22
|
11
|
22
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amazon Technologies, Inc. | 24422 |
12 |
| Huawei Technologies Co., Ltd. | 100781 |
10 |
| Eaton Intelligent Power Limited | 6113 |
10 |
| Schneider Electric IT Corporation | 737 |
7 |
| ABB Schweiz AG | 6321 |
6 |
| Hewlett Packard Enterprise Development LP | 10702 |
6 |
| Delta Electronics, Inc. | 2401 |
5 |
| Savant Systems, Inc. | 262 |
5 |
| Microsoft Technology Licensing, LLC | 51439 |
4 |
| Toyota Motor Corporation | 28582 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
| ZTE Corporation | 39218 |
3 |
| ABL IP Holding LLC | 1929 |
3 |
| Liebert Corporation | 87 |
3 |
| FFP2018, Inc. | 9 |
3 |
| Briggs & Stratton, LLC | 673 |
3 |
| Huawei Digital Power Technologies Co. Ltd. | 1527 |
3 |
| Siemens AG | 24990 |
2 |
| NEC Corporation | 32703 |
2 |
| Eaton Corporation | 1839 |
2 |
| Other owners | 218 |