- All sections
- H - Electricity
- H01R - Electrically-conductive connectionsstructural associations of a plurality of mutually-insulated electrical connecting elementscoupling devicescurrent collectors
- H01R 39/20 - Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof
Patent holdings for IPC class H01R 39/20
Total number of patents in this class: 99
10-year publication summary
|
7
|
8
|
9
|
9
|
7
|
9
|
3
|
4
|
9
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schunk Carbon Technology GmbH | 44 |
10 |
| Tanaka Kikinzoku Kogyo K.K. | 574 |
5 |
| Sawstop Holding LLC | 64 |
5 |
| Robert Bosch GmbH | 44252 |
4 |
| Toyo Tanso Co., Ltd. | 217 |
4 |
| Denso Corporation | 25676 |
3 |
| Nissan Motor Co., Ltd. | 13016 |
3 |
| ABB Schweiz AG | 7680 |
3 |
| Heraeus Materials Technology GmbH & Co. KG | 28 |
3 |
| Mabuchi Motor Co., Ltd. | 231 |
3 |
| New Way Machine Components, Inc. | 35 |
3 |
| Illinois Tool Works Inc. | 11863 |
2 |
| Murata Manufacturing Co., Ltd. | 25847 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 34335 |
2 |
| Schaeffler Technologies AG & Co. KG | 11125 |
2 |
| The Furukawa Electric Co., Ltd. | 3693 |
2 |
| Mersen France Amiens SAS | 40 |
2 |
| Sandvik Intellectual Property AB | 1389 |
2 |
| Schunk Kohlenstofftechnik GmbH | 140 |
2 |
| Stemmann-Technik GmbH | 48 |
2 |
| Other owners | 35 |