- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16F - Springs; shock-absorbers; means for damping vibration
- F16F 1/44 - Springs made of material having high internal friction characterised by the mode of stressing loaded mainly in compression
Patent holdings for IPC class F16F 1/44
Total number of patents in this class: 129
10-year publication summary
|
20
|
9
|
6
|
9
|
17
|
15
|
7
|
4
|
4
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Silgan Dispensing Systems Corporation | 319 |
13 |
| Hendrickson USA, L.L.C. | 603 |
7 |
| NOK Corporation | 2108 |
5 |
| Sumitomo Riko Company Limited | 962 |
5 |
| ZF Friedrichshafen AG | 6820 |
4 |
| Toyota Motor Corporation | 28582 |
3 |
| The Boeing Company | 19843 |
3 |
| ThyssenKrupp AG | 3086 |
3 |
| BASF SE | 19740 |
2 |
| JTEKT Corporation | 2423 |
2 |
| Amsted Rail Company, Inc. | 432 |
2 |
| Firestone Industrial Products Company, LLC | 316 |
2 |
| Uhde High Pressure Technologies GmbH | 31 |
2 |
| PSA Automobiles SA | 2057 |
2 |
| Prospira Corporation | 160 |
2 |
| Honda Motor Co., Ltd. | 24537 |
1 |
| Deere & Company | 6845 |
1 |
| Ricoh Company, Ltd. | 13266 |
1 |
| GM Global Technology Operations LLC | 13620 |
1 |
| Denso Corporation | 23338 |
1 |
| Other owners | 67 |