- All sections
- H - Electricity
- H01R - Electrically-conductive connectionsstructural associations of a plurality of mutually-insulated electrical connecting elementscoupling devicescurrent collectors
- H01R 39/12 - Slip-rings using bearing or shaft surface as contact surface
Patent holdings for IPC class H01R 39/12
Total number of patents in this class: 69
10-year publication summary
|
6
|
7
|
4
|
3
|
2
|
8
|
5
|
2
|
8
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ZF Friedrichshafen AG | 7222 |
7 |
| Inpro/Seal LLC | 102 |
6 |
| Halliburton Energy Services, Inc. | 21154 |
5 |
| Illinois Tool Works Inc. | 11713 |
4 |
| Schaeffler Technologies AG & Co. KG | 10644 |
3 |
| Cutsforth, Inc. | 72 |
3 |
| Bayerische Motoren Werke Aktiengesellschaft | 14955 |
2 |
| Schunk Carbon Technology GmbH | 39 |
2 |
| Anduril Industries Inc. | 189 |
2 |
| Apple Inc. | 57924 |
1 |
| Schlumberger Technology Corporation | 11436 |
1 |
| Schlumberger Canada Limited | 7552 |
1 |
| Schlumberger Technology B.v. | 5267 |
1 |
| Schlumberger Holdings Limited | 2744 |
1 |
| Applied Materials, Inc. | 19908 |
1 |
| NTN Corporation | 4942 |
1 |
| ABB Schweiz AG | 7393 |
1 |
| Abu Dhabi University | 47 |
1 |
| BAE Systems Land & Armaments, L.P. | 50 |
1 |
| Bruss Sealing Systems GmbH | 21 |
1 |
| Other owners | 24 |