- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16F - Springsshock-absorbersmeans for damping vibration
- F16F 3/02 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
Patent holdings for IPC class F16F 3/02
Total number of patents in this class: 218
10-year publication summary
|
12
|
20
|
29
|
28
|
22
|
9
|
16
|
13
|
13
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NHK Spring Co., Ltd. | 1795 |
12 |
| Raytheon Company | 8394 |
10 |
| HRL Laboratories, LLC | 1598 |
10 |
| Mitsubishi Steel Mfg. Co., Ltd. | 129 |
10 |
| Sealy Technology LLC | 351 |
6 |
| Toyota Motor Corporation | 30824 |
5 |
| Nichias Corporation | 388 |
5 |
| Dreamwell, Ltd. | 397 |
4 |
| Rassini Suspensiones, S.A. de C.V. | 14 |
4 |
| Composite Technology Concepts, LLC | 4 |
3 |
| Honda Motor Co., Ltd. | 25092 |
2 |
| Robert Bosch GmbH | 42126 |
2 |
| GM Global Technology Operations LLC | 14612 |
2 |
| Microsoft Technology Licensing, LLC | 53262 |
2 |
| Hamilton Sundstrand Corporation | 4795 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10734 |
2 |
| Alpla Werke Alwin Lehner GmbH & Co. KG | 360 |
2 |
| BAE Systems Hägglunds Aktiebolag | 223 |
2 |
| Burckhardt Compression AG | 116 |
2 |
| Corfac2 S.A. | 2 |
2 |
| Other owners | 129 |