- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 33/34 - Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
Patent holdings for IPC class H01H 33/34
Total number of patents in this class: 50
10-year publication summary
|
2
|
2
|
2
|
2
|
0
|
3
|
1
|
0
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ABB Technology AG | 1236 |
18 |
| Hitachi Energy Ltd. | 2445 |
10 |
| Siemens AG | 24250 |
2 |
| Hitachi, Ltd. | 15862 |
2 |
| Mitsubishi Electric Corporation | 47511 |
2 |
| ABB Schweiz AG | 7393 |
2 |
| General Electric Technology GmbH | 1346 |
2 |
| Eaton Intelligent Power Limited | 6150 |
2 |
| Toshiba Corporation | 12698 |
1 |
| State Grid Corporation of China | 1385 |
1 |
| Hyundai Electric & Energy Systems Co., Ltd | 52 |
1 |
| Toshiba Energy Systems & Solutions Corp. | 1126 |
1 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6203 |
1 |
| Pinggao Group Co., Ltd. | 100 |
1 |
| Henan Ping Gao Electric Co., Ltd | 19 |
1 |
| Shenyang Donghua Industrial University High Voltage Electric Apparatus Co., Ltd. | 1 |
1 |
| Hitachi Energy Switzerland AG | 299 |
1 |
| GE Vernova Infrastructure Technology LLC | 386 |
1 |
| Other owners | 0 |