- 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: 627
10-year publication summary
|
54
|
57
|
67
|
48
|
37
|
37
|
40
|
36
|
41
|
22
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NHK Spring Co., Ltd. | 1992 |
81 |
| Chuo Hatsujo Kabushiki Kaisha | 127 |
20 |
| Raytheon Company | 8436 |
18 |
| Robert Bosch GmbH | 44254 |
15 |
| Mitsubishi Steel Mfg. Co., Ltd. | 130 |
14 |
| Nippon Steel Corporation | 6932 |
14 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2836 |
10 |
| ThyssenKrupp AG | 3353 |
10 |
| Sumitomo Electric Industries, Ltd. | 16448 |
9 |
| Koninklijke Philips N.V. | 25938 |
8 |
| Hutchinson Technology Incorporated | 305 |
8 |
| ThyssenKrupp Federn und Stabilisatoren GmbH | 51 |
8 |
| Silgan Dispensing Systems Corporation | 322 |
7 |
| Nippon Steel SG Wire Co., Ltd. | 14 |
7 |
| Schaeffler Technologies AG & Co. KG | 11093 |
5 |
| Dreamwell, Ltd. | 408 |
5 |
| Nivarox-FAR S.A. | 287 |
5 |
| NV Bekaert SA | 723 |
5 |
| SCHERDEL INNOTEC Forschungs-und Entwicklungs-GmbH | 35 |
5 |
| Toppan Inc. | 762 |
5 |
| Other owners | 368 |