- 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: 220
10-year publication summary
|
20
|
29
|
28
|
22
|
9
|
17
|
12
|
14
|
11
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NHK Spring Co., Ltd. | 1957 |
12 |
| Raytheon Company | 8456 |
11 |
| HRL Laboratories, LLC | 1627 |
10 |
| Mitsubishi Steel Mfg. Co., Ltd. | 130 |
10 |
| Toyota Motor Corporation | 35179 |
6 |
| Sealy Technology LLC | 366 |
6 |
| Nichias Corporation | 401 |
5 |
| Dreamwell, Ltd. | 408 |
4 |
| Rassini Suspensiones, S.A. de C.V. | 14 |
4 |
| GM Global Technology Operations LLC | 15980 |
3 |
| Composite Technology Concepts, LLC | 4 |
3 |
| Toppan Holdings Inc. | 864 |
3 |
| Honda Motor Co., Ltd. | 25935 |
2 |
| Robert Bosch GmbH | 43908 |
2 |
| Microsoft Technology Licensing, LLC | 54317 |
2 |
| Hamilton Sundstrand Corporation | 5020 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11056 |
2 |
| Purdue Research Foundation | 3881 |
2 |
| Alpla Werke Alwin Lehner GmbH & Co. KG | 413 |
2 |
| BAE Systems Hägglunds Aktiebolag | 229 |
2 |
| Other owners | 127 |