- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16F - Springs; shock-absorbers; means for damping vibration
- F16F 9/508 - Means responsive to the velocity of movement of the piston
Patent holdings for IPC class F16F 9/508
Total number of patents in this class: 69
10-year publication summary
|
3
|
7
|
8
|
8
|
8
|
7
|
7
|
10
|
7
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| KYB Corporation | 1322 |
24 |
| Hitachi Automotive Systems, Ltd. | 3962 |
21 |
| Hitachi Astemo, Ltd. | 6050 |
14 |
| Showa Corporation | 188 |
2 |
| Somic Management Holdings Inc. | 67 |
2 |
| Bell Helicopter Textron Inc. | 1085 |
1 |
| Nifco Inc. | 1107 |
1 |
| Ohlins Racing AB | 131 |
1 |
| Piolax Inc. | 392 |
1 |
| Tenneco Automotive Operating Company Inc. | 637 |
1 |
| Zhuzhou Times New Material Technology Co., Ltd. | 64 |
1 |
| Other owners | 0 |