- All sections
- H - Electricity
- H01R - Electrically-conductive connectionsstructural associations of a plurality of mutually-insulated electrical connecting elementscoupling devicescurrent collectors
- H01R 39/18 - Contacts for co-operation with commutator or slip-ring, e.g. contact brush
Patent holdings for IPC class H01R 39/18
Total number of patents in this class: 67
10-year publication summary
|
3
|
10
|
7
|
4
|
5
|
2
|
4
|
4
|
7
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 33401 |
5 |
| Stemmann-Technik GmbH | 47 |
5 |
| Halliburton Energy Services, Inc. | 21161 |
3 |
| LG Innotek Co., Ltd. | 8136 |
3 |
| Schleifring und Apparatebau GmbH | 76 |
3 |
| Robert Bosch GmbH | 43500 |
2 |
| Applied Materials, Inc. | 19938 |
2 |
| Conductix, Inc. | 50 |
2 |
| New Way Machine Components, Inc. | 37 |
2 |
| Princetel, Inc. | 24 |
2 |
| Siemens Gamesa Renewable Energy A/S | 1924 |
2 |
| Schleifring GmbH | 71 |
2 |
| LG Electronics Inc. | 74848 |
1 |
| Sandia Corporation | 93 |
1 |
| Bayerische Motoren Werke Aktiengesellschaft | 14966 |
1 |
| ZF Friedrichshafen AG | 7223 |
1 |
| Omron Corporation | 7337 |
1 |
| Advanced Drilling Solutions GmbH | 6 |
1 |
| Beijing GoldWind Science & Creation Windpower Equipment Co., Ltd. | 377 |
1 |
| Changsha Zoomlion Heavy Industry Science and Technology Development Co., Ltd. | 194 |
1 |
| Other owners | 26 |