- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16F - Springsshock-absorbersmeans for damping vibration
- F16F 15/121 - Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
Patent holdings for IPC class F16F 15/121
Total number of patents in this class: 327
10-year publication summary
|
37
|
46
|
37
|
29
|
28
|
29
|
17
|
13
|
9
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schaeffler Technologies AG & Co. KG | 9650 |
52 |
| Valeo Embrayages | 637 |
42 |
| Exedy Corporation | 484 |
24 |
| Valeo Kapec Co., Ltd. | 180 |
16 |
| ZF Friedrichshafen AG | 7103 |
11 |
| Litens Automotive Partnership | 329 |
11 |
| Aisin AW Co., Ltd. | 2345 |
10 |
| Toyota Motor Corporation | 31095 |
7 |
| BorgWarner Inc. | 2616 |
7 |
| Gates Corporation | 1156 |
7 |
| GM Global Technology Operations LLC | 14747 |
6 |
| Dayco Europe S.r.l. | 144 |
6 |
| Mitsuboshi Belting Ltd. | 308 |
5 |
| Honda Motor Co., Ltd. | 25121 |
4 |
| The Boeing Company | 19955 |
4 |
| Aisin Seiki Kabushiki Kaisha | 2251 |
3 |
| Baker Hughes Oilfield Operations, LLC | 2225 |
3 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12916 |
3 |
| SNECMA S.A. | 1145 |
2 |
| Nissan Motor Co., Ltd. | 12341 |
2 |
| Other owners | 102 |