- All sections
- H - Electricity
- H01T - Spark gapsovervoltage arresters using spark gapssparking plugscorona devicesgenerating ions to be introduced into non-enclosed gases
- H01T 13/42 - Sparking plugs structurally combined with other devices with magnetic spark generators
Patent holdings for IPC class H01T 13/42
Total number of patents in this class: 4
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
|
|---|---|---|
| Robert Bosch GmbH | 44160 |
2 |
| Pratt & Whitney Canada Corp. | 5479 |
1 |
| Denso Corporation | 25534 |
1 |
| Other owners | 0 |