- All sections
- H - Electricity
- H01T - Spark gapsovervoltage arresters using spark gapssparking plugscorona devicesgenerating ions to be introduced into non-enclosed gases
- H01T 13/28 - Sparking plugs characterised by features of the electrodes or insulation having spherically shaped electrodes, e.g. ball-shaped
Patent holdings for IPC class H01T 13/28
Total number of patents in this class: 6
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Svmtech, LLC | 17 |
3 |
| NGK Spark Plug Co., Ltd. | 875 |
1 |
| Monros, Serge V. | 1 |
1 |
| Niterra Co., Ltd. | 1401 |
1 |
| Other owners | 0 |