- All sections
- H - Electricity
- H01T - Spark gaps; overvoltage arresters using spark gaps; sparking plugs; corona devices; generating 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: 111
10-year publication summary
|
10
|
12
|
13
|
20
|
9
|
7
|
3
|
4
|
5
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Niterra Co., Ltd. | 1122 |
21 |
| NGK Spark Plug Co., Ltd. | 935 |
16 |
| Robert Bosch GmbH | 40953 |
10 |
| Denso Corporation | 23338 |
10 |
| Federal-Mogul Ignition Company | 95 |
7 |
| Tenneco Inc | 274 |
6 |
| Wilmington Trust, National Association, AS Co-collateral Trustee, Successor Collateral Trustee | 345 |
5 |
| FRAM Group IP LLC | 114 |
4 |
| EcoPower Spark, LLC | 13 |
3 |
| Ford Global Technologies, LLC | 19702 |
2 |
| Jefferies Finance LLC | 199 |
2 |
| Rosenberger Hochfrequenztechnik GmbH & Co. KG | 677 |
2 |
| Safran Aircraft Engines | 5739 |
2 |
| Federal-Mogul Ignition LLC | 34 |
2 |
| Aeva | 4 |
2 |
| General Electric Company | 18133 |
1 |
| The Boeing Company | 19843 |
1 |
| Hyundai Motor Company | 19021 |
1 |
| BERU AG | 26 |
1 |
| BorgWarner Ludwigsburg GmbH | 109 |
1 |
| Other owners | 12 |