- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 33/58 - Silencers for suppressing noise of switch operation
Patent holdings for IPC class H01H 33/58
Total number of patents in this class: 8
10-year publication summary
|
1
|
0
|
0
|
0
|
0
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0
|
0
|
1
|
3
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Energy Ltd. | 2426 |
2 |
| Siemens AG | 24314 |
1 |
| ABB AG | 470 |
1 |
| ABB Schweiz AG | 7379 |
1 |
| Glorious, LLC | 55 |
1 |
| Siemens Energy Global GmbH & Co. KG | 3207 |
1 |
| HD Hyundai Electric Co., Ltd. | 19 |
1 |
| Other owners | 0 |