- All sections
- H - Electricity
- H01T - Spark gapsovervoltage arresters using spark gapssparking plugscorona devicesgenerating ions to be introduced into non-enclosed gases
- H01T 4/00 - Overvoltage arresters using spark gaps
Patent holdings for IPC class H01T 4/00
Total number of patents in this class: 23
10-year publication summary
|
1
|
2
|
3
|
2
|
2
|
0
|
0
|
3
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24562 |
3 |
| Prolec, S. A. de C. V. | 4 |
2 |
| Mitsubishi Electric Corporation | 45646 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 30769 |
1 |
| OSRAM GmbH | 2392 |
1 |
| Hubbell Incorporated | 3218 |
1 |
| ABB Schweiz AG | 6865 |
1 |
| DEHN + SÖHNE GmbH + Co. KG | 128 |
1 |
| KEMET Electronics Corporation | 332 |
1 |
| Korea Electric Power Corporation | 468 |
1 |
| OSRAM S.p.A. - Societa' Riunite OSRAM Edison Clerici | 100 |
1 |
| PFISTERER Kontaktsysteme GbmH | 1 |
1 |
| Vacuum Interrupters, Inc. | 14 |
1 |
| Eaton Intelligent Power Limited | 5919 |
1 |
| Lightning Suppression Systems Co., Ltd. | 14 |
1 |
| Siemens Energy Global GmbH & Co. KG | 2902 |
1 |
| Dehn SE | 158 |
1 |
| Prolec-ge Waukesha, Inc. | 34 |
1 |
| Hitachi Energy Ltd. | 2169 |
1 |
| Ground Lightning S.A.S | 1 |
1 |
| Other owners | 0 |