- All sections
- H - Electricity
- H01R - Electrically-conductive connectionsstructural associations of a plurality of mutually-insulated electrical connecting elementscoupling devicescurrent collectors
- H01R 39/58 - Means structurally associated with the current collector for indicating condition thereof, e.g. for indicating brush wear
Patent holdings for IPC class H01R 39/58
Total number of patents in this class: 105
10-year publication summary
|
7
|
10
|
8
|
12
|
3
|
7
|
4
|
1
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cutsforth, Inc. | 73 |
28 |
| AB Dynamoborstfabriken | 35 |
6 |
| Cutsforth Products, Inc. | 8 |
6 |
| GE Infrastructure Technology, LLC | 6209 |
6 |
| Mersen France Amiens SAS | 39 |
5 |
| Schleifring GmbH | 71 |
4 |
| Robert Bosch GmbH | 43385 |
3 |
| Bayerische Motoren Werke Aktiengesellschaft | 14918 |
3 |
| Schunk Kohlenstofftechnik GmbH | 137 |
3 |
| Halliburton Energy Services, Inc. | 21144 |
2 |
| Alexsava Holdings Limited | 5 |
2 |
| Esdaco BVBA | 2 |
2 |
| Schunk Carbon Technology GmbH | 39 |
2 |
| Schunk Transit Systems GmbH | 76 |
2 |
| Siemens AG | 24329 |
1 |
| Ford Motor Company | 2690 |
1 |
| Canon Inc. | 41921 |
1 |
| Nissan Motor Co., Ltd. | 12737 |
1 |
| Hamilton Sundstrand Corporation | 5006 |
1 |
| Siemens Energy, Inc. | 1698 |
1 |
| Other owners | 25 |