- All sections
- H - Electricity
- H01T - Spark gapsovervoltage arresters using spark gapssparking plugscorona devicesgenerating ions to be introduced into non-enclosed gases
- H01T 13/54 - Sparking plugs having electrodes arranged in a partly-enclosed ignition chamber
Patent holdings for IPC class H01T 13/54
Total number of patents in this class: 246
10-year publication summary
|
12
|
17
|
17
|
16
|
17
|
28
|
43
|
34
|
16
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42922 |
54 |
| Denso Corporation | 24652 |
22 |
| Federal-Mogul Ignition GmbH | 54 |
15 |
| NGK Spark Plug Co., Ltd. | 888 |
14 |
| Woodward, Inc. | 648 |
14 |
| Niterra Co., Ltd. | 1321 |
14 |
| DKT Verwaltungs-GmbH | 15 |
13 |
| Caterpillar Inc. | 9687 |
10 |
| Caterpillar Energy Solutions GmbH | 148 |
10 |
| Bayerische Motoren Werke Aktiengesellschaft | 14577 |
9 |
| Innio Jenbacher GmbH & Co og | 274 |
6 |
| Cummins Inc. | 2621 |
4 |
| MTU Friedrichshafen GmbH | 294 |
4 |
| Prometheus Applied Technologies, LLC | 28 |
4 |
| Daimler AG | 3344 |
3 |
| GE Jenbacher GmbH & Co og | 94 |
3 |
| General Electric Company | 13862 |
2 |
| Toyota Motor Corporation | 33183 |
2 |
| Aramco Services Company | 4058 |
2 |
| MAHLE International GmbH | 2817 |
2 |
| Other owners | 39 |