- 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: 1174
10-year publication summary
|
89
|
84
|
101
|
86
|
92
|
73
|
73
|
86
|
75
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Astemo, Ltd. | 6385 |
133 |
| KYB Corporation | 1398 |
104 |
| Fox Factory, Inc. | 868 |
93 |
| Advanced Suspension Technology LLC | 253 |
59 |
| Tenneco Automotive Operating Company Inc. | 279 |
40 |
| ZF Friedrichshafen AG | 7198 |
36 |
| Hitachi Automotive Systems, Ltd. | 3954 |
34 |
| BeijingWest Industries, Co., Ltd. | 154 |
31 |
| HL Mando Corporation | 1712 |
31 |
| Kayaba Industry Co., Ltd. | 348 |
25 |
| Showa Corporation | 188 |
23 |
| ThyssenKrupp Bilstein GmbH | 205 |
20 |
| ThyssenKrupp AG | 3382 |
19 |
| KYB Motorcycle Suspension Co., Ltd. | 80 |
17 |
| Nifco Inc. | 1110 |
15 |
| Ohlins Racing AB | 121 |
15 |
| Firestone Industrial Products Company, LLC | 326 |
13 |
| BYD Company Limited | 5742 |
12 |
| Specialized Bicycle Components, Inc. | 741 |
9 |
| Oshkosh Defense, LLC | 202 |
8 |
| Other owners | 437 |