- 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 13/54 - 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: 232
10-year publication summary
|
9
|
13
|
17
|
19
|
16
|
17
|
28
|
44
|
33
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 40953 |
43 |
| Denso Corporation | 23338 |
22 |
| Federal-Mogul Ignition GmbH | 52 |
16 |
| Woodward, Inc. | 602 |
14 |
| Niterra Co., Ltd. | 1122 |
14 |
| NGK Spark Plug Co., Ltd. | 935 |
13 |
| DKT Verwaltungs-GmbH | 15 |
13 |
| Caterpillar Inc. | 8877 |
9 |
| Bayerische Motoren Werke Aktiengesellschaft | 13126 |
8 |
| Caterpillar Energy Solutions GmbH | 132 |
8 |
| Innio Jenbacher GmbH & Co og | 236 |
6 |
| Cummins Inc. | 2369 |
4 |
| MTU Friedrichshafen GmbH | 301 |
4 |
| Prometheus Applied Technologies, LLC | 24 |
4 |
| Daimler AG | 3462 |
3 |
| GE Jenbacher GmbH & Co og | 98 |
3 |
| General Electric Company | 18133 |
2 |
| Toyota Motor Corporation | 28582 |
2 |
| Aramco Services Company | 3504 |
2 |
| MAHLE International GmbH | 2670 |
2 |
| Other owners | 40 |