- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16F - Springs; shock-absorbers; means for damping vibration
- F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
Patent holdings for IPC class F16F 9/348
Total number of patents in this class: 574
10-year publication summary
|
47
|
51
|
63
|
59
|
50
|
43
|
51
|
49
|
56
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Astemo, Ltd. | 6050 |
90 |
| ZF Friedrichshafen AG | 7019 |
71 |
| KYB Corporation | 1322 |
68 |
| HL Mando Corporation | 1514 |
30 |
| BeijingWest Industries, Co., Ltd. | 147 |
26 |
| Tenneco Automotive Operating Company Inc. | 637 |
26 |
| Hitachi Automotive Systems, Ltd. | 3962 |
24 |
| Fox Factory, Inc. | 795 |
24 |
| DRiV Automotive Inc. | 327 |
23 |
| ThyssenKrupp Bilstein GmbH | 196 |
21 |
| Kayaba Industry Co., Ltd. | 367 |
17 |
| ThyssenKrupp AG | 3210 |
15 |
| Ohlins Racing AB | 131 |
10 |
| Koni B.V. | 46 |
8 |
| N10z Performance Shocks LLC | 6 |
6 |
| KYB Europe GmbH Sucursal en Navarra | 10 |
6 |
| Honda Motor Co., Ltd. | 24865 |
5 |
| Oshkosh Defense, LLC | 169 |
5 |
| KYB Motorcycle Suspension Co., Ltd. | 62 |
5 |
| Amgen Inc. | 3897 |
4 |
| Other owners | 90 |