- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16F - Springsshock-absorbersmeans for damping vibration
- F16F 9/34 - Special valve constructionsShape or construction of throttling passages
Patent holdings for IPC class F16F 9/34
Total number of patents in this class: 1223
10-year publication summary
|
90
|
87
|
101
|
88
|
99
|
78
|
75
|
91
|
79
|
51
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Astemo, Ltd. | 6429 |
134 |
| KYB Corporation | 1436 |
111 |
| Fox Factory, Inc. | 907 |
97 |
| Advanced Suspension Technology LLC | 265 |
61 |
| Tenneco Automotive Operating Company Inc. | 453 |
40 |
| ZF Friedrichshafen AG | 7276 |
37 |
| Hitachi Automotive Systems, Ltd. | 3954 |
34 |
| HL Mando Corporation | 1865 |
34 |
| BeijingWest Industries, Co., Ltd. | 158 |
31 |
| Kayaba Industry Co., Ltd. | 343 |
25 |
| Showa Corporation | 188 |
23 |
| ThyssenKrupp Bilstein GmbH | 228 |
22 |
| ThyssenKrupp AG | 3329 |
21 |
| KYB Motorcycle Suspension Co., Ltd. | 91 |
19 |
| BYD Company Limited | 6602 |
15 |
| Nifco Inc. | 1102 |
15 |
| Ohlins Racing AB | 100 |
14 |
| Firestone Industrial Products Company, LLC | 326 |
13 |
| Astemo, Ltd. | 725 |
13 |
| Oshkosh Defense, LLC | 222 |
8 |
| Other owners | 456 |