- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16F - Springs; shock-absorbers; means for damping vibration
- F16F 9/05 - 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 the flexible wall being of the rolling diaphragm type
Patent holdings for IPC class F16F 9/05
Total number of patents in this class: 373
10-year publication summary
|
40
|
42
|
37
|
28
|
21
|
26
|
15
|
12
|
15
|
1
|
| 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 |
99 |
| ContiTech Luftfedersysteme GmbH | 112 |
30 |
| Hendrickson USA, L.L.C. | 603 |
27 |
| Continental Teves AG & Co. oHG | 2354 |
16 |
| Sumitomo Electric Industries, Ltd. | 14131 |
14 |
| SAF-HOLLAND GmbH | 414 |
14 |
| Continental Aktiengesellschaft | 168 |
13 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
11 |
| Vibracoustic CV Air Springs GmbH | 22 |
10 |
| Bridgestone Corporation | 7067 |
9 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 174 |
9 |
| Continental Automotive Systems, Inc. | 1163 |
8 |
| BFS Diversified Products, LLC | 39 |
7 |
| Infinity Engineered Products, LLC | 24 |
7 |
| ZF Friedrichshafen AG | 6820 |
6 |
| Carbon Air Limited | 24 |
6 |
| Audi AG | 7153 |
5 |
| Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | 1407 |
5 |
| Vibracoustic SE | 101 |
5 |
| Toyo Tire & Rubber Co., Ltd. | 631 |
4 |
| Other owners | 68 |