- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16F - Springs; shock-absorbers; means for damping vibration
- F16F 15/134 - Wound springs
Patent holdings for IPC class F16F 15/134
Total number of patents in this class: 466
10-year publication summary
|
55
|
59
|
45
|
59
|
41
|
28
|
23
|
16
|
10
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Exedy Corporation | 488 |
88 |
| Aisin AW Co., Ltd. | 2430 |
67 |
| Schaeffler Technologies AG & Co. KG | 8880 |
62 |
| Valeo Embrayages | 590 |
28 |
| Aisin AW Industries Co., Ltd. | 63 |
27 |
| ZF Friedrichshafen AG | 6820 |
25 |
| Aisin Seiki Kabushiki Kaisha | 2427 |
21 |
| LuK Lamellen und Kupplungsbau Beteiligungs KG | 339 |
12 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
12 |
| Aisin Corporation | 1164 |
12 |
| Schaeffler Technologies GmbH & Co. KG | 846 |
11 |
| Kabushiki Kaisha F.C.C. | 330 |
7 |
| Unipres Corporation | 56 |
7 |
| BorgWarner Inc. | 2604 |
6 |
| Toyota Motor Corporation | 28582 |
5 |
| Seescan, Inc. | 457 |
5 |
| Yutaka Giken Co., Ltd. | 56 |
5 |
| Valeo Kapec Co., Ltd. | 158 |
5 |
| Hyundai Motor Company | 19021 |
4 |
| Bayerische Motoren Werke Aktiengesellschaft | 13126 |
4 |
| Other owners | 53 |