- All sections
- H - Electricity
- H01T - Spark gapsovervoltage arresters using spark gapssparking plugscorona devicesgenerating ions to be introduced into non-enclosed gases
- H01T 13/38 - Selection of materials for insulation
Patent holdings for IPC class H01T 13/38
Total number of patents in this class: 115
10-year publication summary
|
11
|
13
|
20
|
9
|
7
|
3
|
4
|
5
|
8
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Niterra Co., Ltd. | 1316 |
26 |
| NGK Spark Plug Co., Ltd. | 888 |
16 |
| Robert Bosch GmbH | 42826 |
10 |
| Denso Corporation | 24562 |
10 |
| Federal-Mogul Ignition Company | 94 |
7 |
| Federal-Mogul Ignition LLC | 80 |
6 |
| EcoPower Spark, LLC | 18 |
4 |
| FRAM Group IP LLC | 121 |
3 |
| Tenneco Inc | 211 |
3 |
| Federal-Mogul Motorparts LLC | 432 |
3 |
| Ford Global Technologies, LLC | 20755 |
2 |
| Jefferies Finance LLC | 188 |
2 |
| Rosenberger Hochfrequenztechnik GmbH & Co. KG | 683 |
2 |
| Safran Aircraft Engines | 6317 |
2 |
| Wilmington Trust, National Association, AS Co-collateral Trustee, Successor Collateral Trustee | 189 |
2 |
| Aeva | 5 |
2 |
| General Electric Company | 13859 |
1 |
| The Boeing Company | 20139 |
1 |
| Hyundai Motor Company | 22435 |
1 |
| BERU AG | 20 |
1 |
| Other owners | 11 |