- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16F - Springs; shock-absorbers; means for damping vibration
- F16F 1/18 - Leaf springs
Patent holdings for IPC class F16F 1/18
Total number of patents in this class: 291
10-year publication summary
18
|
28
|
30
|
28
|
34
|
25
|
18
|
16
|
19
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
NHK Spring Co., Ltd. | 1657 |
35 |
Hendrickson Commercial Vehicle Systems Europe GmbH | 14 |
13 |
Hendrickson USA, L.L.C. | 603 |
12 |
Braun GmbH | 1290 |
10 |
Mitsubishi Steel Mfg. Co., Ltd. | 137 |
8 |
Raytheon Company | 8535 |
7 |
Nichias Corporation | 386 |
5 |
Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
5 |
Toppan Inc. | 746 |
5 |
Rassini Suspensiones, S.A. de C.V. | 15 |
4 |
Hyundai Motor Company | 19021 |
3 |
ZF Friedrichshafen AG | 6820 |
3 |
Kia Motors Corporation | 7946 |
3 |
Chuo Hatsujo Kabushiki Kaisha | 124 |
3 |
Koganei Corporation | 209 |
3 |
Alps Alpine Co., Ltd. | 1831 |
3 |
The Boeing Company | 19843 |
2 |
Lockheed Martin Corporation | 3406 |
2 |
Continental Teves AG & Co. oHG | 2354 |
2 |
Nippon Telegraph and Telephone Corporation | 14195 |
2 |
Other owners | 161 |