- 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: 536
10-year publication summary
|
53
|
47
|
51
|
63
|
59
|
50
|
43
|
51
|
49
|
14
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Astemo, Ltd. | 5618 |
83 |
| ZF Friedrichshafen AG | 6820 |
68 |
| KYB Corporation | 1278 |
58 |
| Tenneco Automotive Operating Company Inc. | 658 |
26 |
| HL Mando Corporation | 1310 |
26 |
| Hitachi Automotive Systems, Ltd. | 3970 |
25 |
| BeijingWest Industries, Co., Ltd. | 141 |
25 |
| Fox Factory, Inc. | 752 |
22 |
| ThyssenKrupp Bilstein GmbH | 188 |
19 |
| Kayaba Industry Co., Ltd. | 376 |
17 |
| DRiV Automotive Inc. | 280 |
16 |
| ThyssenKrupp AG | 3086 |
13 |
| Ohlins Racing AB | 130 |
10 |
| Koni B.V. | 46 |
9 |
| Honda Motor Co., Ltd. | 24537 |
6 |
| Oshkosh Defense, LLC | 159 |
5 |
| N10z Performance Shocks LLC | 5 |
5 |
| KYB Europe GmbH Sucursal en Navarra | 8 |
5 |
| Amgen Inc. | 3779 |
3 |
| GM Global Technology Operations LLC | 13620 |
3 |
| Other owners | 92 |