- All sections
- H - Electricity
- H01R - Electrically-conductive connectionsstructural associations of a plurality of mutually-insulated electrical connecting elementscoupling devicescurrent collectors
- H01R 39/04 - Commutators
Patent holdings for IPC class H01R 39/04
Total number of patents in this class: 68
10-year publication summary
|
5
|
9
|
6
|
5
|
5
|
7
|
1
|
3
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denso Corporation | 25361 |
9 |
| Robert Bosch GmbH | 43788 |
7 |
| Panasonic Corporation | 19386 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 33812 |
3 |
| LG Innotek Co., Ltd. | 8264 |
2 |
| BSH Bosch und Siemens Hausgerate GmbH | 2527 |
2 |
| Clearwater Holdings, Ltd. | 28 |
2 |
| Mabuchi Motor Co., Ltd. | 222 |
2 |
| OASYS Healthcare Corporation | 12 |
2 |
| Tanaka Kikinzoku Kogyo K.K. | 575 |
2 |
| Tris Inc. | 18 |
2 |
| Schunk Hoffmann Carbon Technology AG | 8 |
2 |
| AC2T research GmbH | 13 |
2 |
| Zhejiang Greatwall Commutator Co., Ltd. | 4 |
2 |
| DYNAenergetics Europe GmbH | 258 |
2 |
| New United Rail Transit Technology Co., Ltd. | 8 |
2 |
| Taicang Libiao Intelligent Technology Co., Ltd | 2 |
2 |
| Aisan Kogyo Kabushiki Kaisha | 761 |
1 |
| Brooks Automation, Inc. | 151 |
1 |
| Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Hallstadt | 89 |
1 |
| Other owners | 17 |