- 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: 246
10-year publication summary
|
17
|
18
|
19
|
12
|
9
|
21
|
14
|
15
|
28
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ABB Schweiz AG | 7464 |
27 |
| Eaton Intelligent Power Limited | 6170 |
23 |
| Siemens AG | 24189 |
19 |
| ABB Technology AG | 1233 |
10 |
| LS ELECTRIC Co., Ltd | 795 |
10 |
| Eaton Corporation | 1807 |
7 |
| Hamilton Sundstrand Corporation | 5019 |
7 |
| Hitachi Energy Ltd. | 2506 |
6 |
| Schneider Electric Industries SAS | 1563 |
5 |
| Siemens Energy Global GmbH & Co. KG | 3267 |
5 |
| Ford Global Technologies, LLC | 21309 |
4 |
| Alstom Technology Ltd | 1057 |
4 |
| Sumitomo Wiring Systems, Ltd. | 10798 |
4 |
| ABB S.p.A. | 438 |
4 |
| Eaton Intelligent Power Limited | 418 |
4 |
| Sumitomo Electric Industries, Ltd. | 16126 |
3 |
| Mitsubishi Electric Corporation | 47655 |
3 |
| Siemens Industry, Inc. | 1583 |
3 |
| Acer Incorporated | 2153 |
3 |
| AutoNetworks Technologies, Ltd. | 6951 |
3 |
| Other owners | 92 |