- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 9/52 - Cooling of switch parts
Patent holdings for IPC class H01H 9/52
Total number of patents in this class: 235
10-year publication summary
|
23
|
17
|
18
|
19
|
12
|
9
|
21
|
14
|
14
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ABB Schweiz AG | 6985 |
27 |
| Eaton Intelligent Power Limited | 5993 |
23 |
| Siemens AG | 24461 |
19 |
| ABB Technology AG | 1254 |
10 |
| LS ELECTRIC Co., Ltd | 708 |
9 |
| Eaton Corporation | 1820 |
7 |
| Hamilton Sundstrand Corporation | 4888 |
7 |
| Hitachi Energy Ltd. | 2233 |
6 |
| Ford Global Technologies, LLC | 20605 |
4 |
| Alstom Technology Ltd | 1101 |
4 |
| Sumitomo Wiring Systems, Ltd. | 10376 |
4 |
| ABB S.p.A. | 441 |
4 |
| Schneider Electric Industries SAS | 1489 |
4 |
| Eaton Intelligent Power Limited | 424 |
4 |
| Sumitomo Electric Industries, Ltd. | 15511 |
3 |
| Mitsubishi Electric Corporation | 46160 |
3 |
| Siemens Industry, Inc. | 1447 |
3 |
| Acer Incorporated | 2053 |
3 |
| AutoNetworks Technologies, Ltd. | 6602 |
3 |
| Gorlan Team, S.L.U. | 28 |
3 |
| Other owners | 85 |