- All sections
- H - Electricity
- H01T - Spark gapsovervoltage arresters using spark gapssparking plugscorona devicesgenerating ions to be introduced into non-enclosed gases
- H01T 1/20 - Means for starting arc or facilitating ignition of spark gap
Patent holdings for IPC class H01T 1/20
Total number of patents in this class: 93
10-year publication summary
|
13
|
15
|
5
|
2
|
0
|
0
|
3
|
2
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25514 |
40 |
| TDK Corporation | 6807 |
7 |
| General Electric Company | 13831 |
6 |
| Ene29 S.ar.l. | 32 |
4 |
| TDK Electronics AG | 999 |
4 |
| Siemens AG | 24200 |
3 |
| Bourns, Inc. | 177 |
3 |
| Phoenix Contact GmbH & Co. KG | 2281 |
3 |
| Epcos AG | 659 |
2 |
| DEHN + SÖHNE GmbH + Co. KG | 121 |
2 |
| Mitsubishi Materials Corporation | 2457 |
2 |
| Okaya Electric Industries Co., Ltd. | 20 |
2 |
| Powell Electrical Systems, Inc. | 62 |
2 |
| Panasonic Corporation | 19586 |
1 |
| Showa Denko K.K. | 2098 |
1 |
| China Electric Power Research Institute | 287 |
1 |
| Profoto AB | 88 |
1 |
| Prometheus Applied Technologies, LLC | 31 |
1 |
| Seari Electric Technology Co., Ltd. | 102 |
1 |
| State Grid Corporation of China | 1385 |
1 |
| Other owners | 6 |