- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency protective devices
- H01H 9/52 - Cooling of switch parts
Patent holdings for IPC class H01H 9/52
Total number of patents in this class: 206
10-year publication summary
|
25
|
23
|
17
|
18
|
19
|
12
|
9
|
20
|
12
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ABB Schweiz AG | 6321 |
27 |
| Eaton Intelligent Power Limited | 6113 |
23 |
| Siemens AG | 24990 |
19 |
| ABB Technology AG | 1301 |
10 |
| Eaton Corporation | 1839 |
7 |
| Hamilton Sundstrand Corporation | 4525 |
7 |
| Hitachi Energy Ltd. | 1921 |
7 |
| Ford Global Technologies, LLC | 19702 |
4 |
| Alstom Technology Ltd | 1196 |
4 |
| ABB S.p.A. | 459 |
4 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
3 |
| Schneider Electric Industries SAS | 1376 |
3 |
| Gorlan Team, S.L.U. | 26 |
3 |
| Hitachi Astemo, Ltd. | 5618 |
3 |
| Chongqing Jinkang Powertrain New Energy Co., Ltd. | 72 |
3 |
| Sumitomo Electric Industries, Ltd. | 14131 |
2 |
| Mitsubishi Electric Corporation | 43934 |
2 |
| Siemens Industry, Inc. | 1417 |
2 |
| ABB Research Ltd. | 953 |
2 |
| Acer Incorporated | 1864 |
2 |
| Other owners | 69 |