- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16F - Springs; shock-absorbers; means for damping vibration
- F16F 9/04 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only in a chamber with a flexible wall
Patent holdings for IPC class F16F 9/04
Total number of patents in this class: 532
10-year publication summary
|
51
|
47
|
62
|
49
|
40
|
43
|
35
|
23
|
28
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Firestone Industrial Products Company, LLC | 316 |
125 |
| ContiTech Luftfedersysteme GmbH | 112 |
44 |
| Continental Teves AG & Co. oHG | 2354 |
22 |
| Hendrickson USA, L.L.C. | 603 |
22 |
| Continental Aktiengesellschaft | 168 |
15 |
| Continental Automotive Systems, Inc. | 1163 |
12 |
| SAF-HOLLAND GmbH | 414 |
10 |
| Vibracoustic CV Air Springs GmbH | 22 |
10 |
| Zhuzhou Times New Material Technology Co., Ltd. | 63 |
10 |
| ThyssenKrupp Bilstein GmbH | 188 |
9 |
| Infinity Engineered Products, LLC | 24 |
9 |
| Eagle Industry Co., Ltd. | 1062 |
8 |
| Xilinmen Furniture Co., Ltd. | 64 |
7 |
| ThyssenKrupp AG | 3086 |
6 |
| Xenith, LLC | 54 |
6 |
| Robert Bosch GmbH | 40953 |
5 |
| BFS Diversified Products, LLC | 39 |
5 |
| Sumitomo Electric Industries, Ltd. | 14131 |
4 |
| Bridgestone Corporation | 7067 |
4 |
| Carl Freudenberg KG | 1346 |
4 |
| Other owners | 195 |