- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16F - Springsshock-absorbersmeans for damping vibration
- F16F 1/06 - Wound springs with turns lying in cylindrical surfaces
Patent holdings for IPC class F16F 1/06
Total number of patents in this class: 312
10-year publication summary
|
15
|
38
|
40
|
26
|
20
|
28
|
14
|
8
|
7
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NHK Spring Co., Ltd. | 1821 |
82 |
| Mitsubishi Steel Mfg. Co., Ltd. | 130 |
11 |
| Chuo Hatsujo Kabushiki Kaisha | 128 |
9 |
| Suncall Corporation | 183 |
9 |
| Sumitomo Electric Industries, Ltd. | 15344 |
7 |
| BAL Seal Engineering, LLC | 107 |
6 |
| Denso Corporation | 24120 |
5 |
| BAL Seal Engineering Co., Inc. | 22 |
5 |
| Hitachi Astemo, Ltd. | 6369 |
5 |
| Dreamwell, Ltd. | 396 |
4 |
| Isuzu Motors Limited | 2247 |
4 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2872 |
4 |
| Mitsuboshi Belting Ltd. | 311 |
4 |
| Peterson American Corporation | 17 |
4 |
| Piolax Inc. | 404 |
4 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12864 |
4 |
| Honda Motor Co., Ltd. | 25137 |
3 |
| Toyota Motor Corporation | 31451 |
3 |
| ACE Bed Co., Ltd. | 16 |
3 |
| Delta Kogyo Co., Ltd. | 138 |
3 |
| Other owners | 133 |