- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16F - Springsshock-absorbersmeans for damping vibration
- F16F 1/02 - Springs made of steel or other material having low internal frictionWound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
Patent holdings for IPC class F16F 1/02
Total number of patents in this class: 615
10-year publication summary
|
54
|
56
|
63
|
46
|
35
|
37
|
36
|
35
|
39
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NHK Spring Co., Ltd. | 1933 |
79 |
| Chuo Hatsujo Kabushiki Kaisha | 128 |
20 |
| Raytheon Company | 8473 |
17 |
| Robert Bosch GmbH | 43385 |
16 |
| Nippon Steel Corporation | 6651 |
16 |
| Mitsubishi Steel Mfg. Co., Ltd. | 130 |
15 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2851 |
10 |
| ThyssenKrupp AG | 3426 |
10 |
| Sumitomo Electric Industries, Ltd. | 16000 |
9 |
| Hutchinson Technology Incorporated | 308 |
8 |
| ThyssenKrupp Federn und Stabilisatoren GmbH | 50 |
8 |
| Nippon Steel SG Wire Co., Ltd. | 14 |
8 |
| Koninklijke Philips N.V. | 25435 |
7 |
| Silgan Dispensing Systems Corporation | 313 |
6 |
| Dreamwell, Ltd. | 408 |
5 |
| NV Bekaert SA | 732 |
5 |
| SCHERDEL INNOTEC Forschungs-und Entwicklungs-GmbH | 34 |
5 |
| Toppan Inc. | 764 |
5 |
| Brigham Young University | 593 |
4 |
| Nivarox-FAR S.A. | 281 |
4 |
| Other owners | 358 |