- All sections
- H - Electricity
- H01T - Spark gapsovervoltage arresters using spark gapssparking plugscorona devicesgenerating ions to be introduced into non-enclosed gases
- H01T 13/46 - Sparking plugs having two or more spark gaps
Patent holdings for IPC class H01T 13/46
Total number of patents in this class: 146
10-year publication summary
|
11
|
9
|
9
|
12
|
10
|
13
|
13
|
8
|
1
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 44176 |
27 |
| Niterra Co., Ltd. | 1404 |
9 |
| Caterpillar Inc. | 10281 |
7 |
| NGK Spark Plug Co., Ltd. | 875 |
7 |
| Federal-Mogul Ignition GmbH | 55 |
7 |
| Bayerische Motoren Werke Aktiengesellschaft | 15289 |
6 |
| DKT Verwaltungs-GmbH | 16 |
6 |
| Innio Jenbacher GmbH & Co og | 306 |
6 |
| Miyama, Inc. | 8 |
4 |
| Rosenberger Hochfrequenztechnik GmbH & Co. KG | 694 |
4 |
| Wilmington Trust, National Association, AS Co-collateral Trustee, Successor Collateral Trustee | 113 |
4 |
| Denso Corporation | 25579 |
3 |
| Hyundai Motor Company | 24703 |
3 |
| Cummins Inc. | 2636 |
3 |
| Federal-Mogul Ignition Company | 94 |
3 |
| Ford Global Technologies, LLC | 21524 |
2 |
| Caterpillar Energy Solutions GmbH | 150 |
2 |
| Champion Aerospace LLC | 30 |
2 |
| GE Jenbacher GmbH & Co og | 91 |
2 |
| Valeo Systemes de Controle Moteur | 580 |
2 |
| Other owners | 37 |