- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16F - Springs; shock-absorbers; means for damping vibration
- F16F 1/38 - Springs made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
Patent holdings for IPC class F16F 1/38
Total number of patents in this class: 692
10-year publication summary
|
65
|
50
|
63
|
69
|
78
|
53
|
32
|
42
|
28
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Riko Company Limited | 962 |
55 |
| Bridgestone Corporation | 7067 |
32 |
| Hendrickson USA, L.L.C. | 603 |
25 |
| Prospira Corporation | 160 |
24 |
| Honda Motor Co., Ltd. | 24537 |
23 |
| ZF Friedrichshafen AG | 6820 |
17 |
| BOGE Elastmetall GmbH | 64 |
16 |
| Hyundai Motor Company | 19021 |
14 |
| The Pullman Company | 92 |
14 |
| Tokai Rubber Industries, Ltd. | 163 |
14 |
| Kia Motors Corporation | 7946 |
13 |
| ContiTech Vibration Control GmbH | 101 |
12 |
| Toyo Tire & Rubber Co., Ltd. | 631 |
12 |
| Vibracoustic GmbH | 79 |
12 |
| Yamashita Rubber Kabushiki Kaisha | 50 |
11 |
| Yamashita Rubber Co., Ltd. | 41 |
10 |
| Bayerische Motoren Werke Aktiengesellschaft | 13126 |
9 |
| Schaeffler Technologies AG & Co. KG | 8880 |
9 |
| Ford Global Technologies, LLC | 19702 |
8 |
| Anvis Deutschland GmbH | 21 |
8 |
| Other owners | 354 |