- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 33/78 - Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary partsSelection of material therefor wherein the break is in gas
Patent holdings for IPC class H01H 33/78
Total number of patents in this class: 22
10-year publication summary
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1
|
0
|
1
|
4
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2
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1
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1
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1
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1
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 48287 |
8 |
| General Electric Technology GmbH | 1322 |
3 |
| Hitachi, Ltd. | 16194 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 34403 |
2 |
| Hitachi Energy Ltd. | 2627 |
2 |
| General Electric Company | 13966 |
1 |
| Alstom Technology Ltd | 1034 |
1 |
| S & C Electric Co. | 278 |
1 |
| Schneider Electric Energy France | 20 |
1 |
| TDK Electronics AG | 1014 |
1 |
| Other owners | 0 |