- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16F - Springsshock-absorbersmeans for damping vibration
- F16F 1/387 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin comprising means for modifying the rigidity in particular directions
Patent holdings for IPC class F16F 1/387
Total number of patents in this class: 178
10-year publication summary
|
17
|
25
|
26
|
12
|
4
|
12
|
7
|
12
|
7
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Riko Company Limited | 1178 |
30 |
| Prospira Corporation | 194 |
12 |
| Toyo Tire Corporation | 1061 |
11 |
| Bridgestone Corporation | 7277 |
10 |
| Honda Motor Co., Ltd. | 26657 |
9 |
| Schaeffler Technologies AG & Co. KG | 11233 |
6 |
| EFFBE GmbH | 11 |
5 |
| Vibracoustic SE | 129 |
5 |
| FM Energie GmbH & Co. KG | 21 |
4 |
| Hendrickson USA, L.L.C. | 597 |
4 |
| Yamashita Rubber Kabushiki Kaisha | 49 |
4 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3308 |
4 |
| Hyundai Motor Company | 25119 |
3 |
| ContiTech Vibration Control GmbH | 113 |
3 |
| Vibracoustic GmbH | 70 |
3 |
| Yamashita Rubber Co., Ltd. | 41 |
3 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 188 |
3 |
| Bell Helicopter Textron Inc. | 956 |
2 |
| Condor Wind Energy Limited | 8 |
2 |
| National University Corporation Kanazawa University | 264 |
2 |
| Other owners | 53 |