- All sections
- H - Electricity
- H01T - Spark gapsovervoltage arresters using spark gapssparking plugscorona devicesgenerating ions to be introduced into non-enclosed gases
- H01T 13/58 - Testing
Patent holdings for IPC class H01T 13/58
Total number of patents in this class: 53
10-year publication summary
|
12
|
9
|
4
|
3
|
3
|
6
|
0
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Niterra Co., Ltd. | 1399 |
8 |
| NGK Spark Plug Co., Ltd. | 875 |
4 |
| Robert Bosch GmbH | 44128 |
3 |
| Safran Aircraft Engines | 6671 |
3 |
| Denso Corporation | 25513 |
2 |
| Nissan Motor Co., Ltd. | 12947 |
2 |
| Board of Trustees of Michigan State University | 1208 |
2 |
| Jefferies Finance LLC | 184 |
2 |
| AI Alpine US Bidco Inc. | 103 |
2 |
| General Electric Company | 13888 |
1 |
| Siemens AG | 24033 |
1 |
| Sumitomo Electric Industries, Ltd. | 16305 |
1 |
| GM Global Technology Operations LLC | 16106 |
1 |
| Ford Global Technologies, LLC | 21478 |
1 |
| Bauer Associates, Inc. | 1 |
1 |
| Caterpillar Energy Solutions GmbH | 149 |
1 |
| Chentronics, LLC | 7 |
1 |
| Eldor Corporation S.p.A. | 124 |
1 |
| General Electric Technology GmbH | 1336 |
1 |
| MTU Friedrichshafen GmbH | 294 |
1 |
| Other owners | 14 |