- All sections
- H - Electricity
- H01T - Spark gapsovervoltage arresters using spark gapssparking plugscorona devicesgenerating ions to be introduced into non-enclosed gases
- H01T 4/04 - Housings
Patent holdings for IPC class H01T 4/04
Total number of patents in this class: 87
10-year publication summary
|
8
|
7
|
7
|
8
|
10
|
10
|
3
|
5
|
4
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Phoenix Contact GmbH & Co. KG | 2266 |
8 |
| Eaton Intelligent Power Limited | 5926 |
8 |
| DEHN + SÖHNE GmbH + Co. KG | 128 |
7 |
| Raycap, S.A. | 34 |
7 |
| TDK Electronics AG | 926 |
7 |
| Murata Manufacturing Co., Ltd. | 24260 |
6 |
| Hubbell Incorporated | 3221 |
5 |
| DEHN SE + Co KG | 40 |
5 |
| Siemens Energy Global GmbH & Co. KG | 2904 |
5 |
| Dehn SE | 158 |
5 |
| Siemens AG | 24563 |
3 |
| Citel | 33 |
3 |
| OBO Bettermann GmbH & Co. KG | 15 |
2 |
| Hitachi Energy Ltd. | 2174 |
2 |
| The Boeing Company | 19980 |
1 |
| Epcos AG | 711 |
1 |
| ABB S.p.A. | 445 |
1 |
| Bourns, Inc. | 178 |
1 |
| Ene29 S.ar.l. | 32 |
1 |
| Kondo Electric Co., Ltd. | 1 |
1 |
| Other owners | 8 |