- All sections
- H - Electricity
- H01T - Spark gapsovervoltage arresters using spark gapssparking plugscorona devicesgenerating ions to be introduced into non-enclosed gases
- H01T 13/20 - Sparking plugs characterised by features of the electrodes or insulation
Patent holdings for IPC class H01T 13/20
Total number of patents in this class: 845
10-year publication summary
|
62
|
59
|
28
|
35
|
30
|
26
|
20
|
11
|
5
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Spark Plug Co., Ltd. | 884 |
233 |
| Niterra Co., Ltd. | 1356 |
189 |
| Denso Corporation | 25032 |
83 |
| Robert Bosch GmbH | 43365 |
46 |
| Federal-Mogul Ignition Company | 94 |
33 |
| Wilmington Trust, National Association, AS Co-collateral Trustee, Successor Collateral Trustee | 117 |
22 |
| Jefferies Finance LLC | 187 |
21 |
| Federal-Mogul Ignition LLC | 119 |
20 |
| Federal-Mogul Ignition GmbH | 55 |
16 |
| Imagineering, Inc. | 125 |
15 |
| Federal-Mogul Corporation | 278 |
12 |
| Caterpillar Inc. | 10013 |
9 |
| Innio Jenbacher GmbH & Co og | 285 |
7 |
| Honeywell International Inc. | 13578 |
6 |
| BorgWarner Ludwigsburg GmbH | 104 |
6 |
| Nippon Soken, Inc. | 285 |
6 |
| FRAM Group IP LLC | 122 |
5 |
| Tanaka Kikinzoku Kogyo K.K. | 573 |
5 |
| Woodward, Inc. | 666 |
5 |
| Federal-Mogul Motorparts LLC | 595 |
5 |
| Other owners | 101 |