- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16D - Couplings for transmitting rotation; clutches; brakes
- F16D 13/52 - Clutches with multiple lamellae
Patent holdings for IPC class F16D 13/52
Total number of patents in this class: 761
10-year publication summary
|
44
|
61
|
131
|
119
|
86
|
63
|
81
|
68
|
38
|
19
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schaeffler Technologies AG & Co. KG | 8880 |
107 |
| Kabushiki Kaisha F.C.C. | 330 |
82 |
| BorgWarner Inc. | 2604 |
42 |
| Denso Corporation | 23338 |
34 |
| Exedy Corporation | 488 |
24 |
| Honda Motor Co., Ltd. | 24537 |
23 |
| ZF Friedrichshafen AG | 6820 |
23 |
| GM Global Technology Operations LLC | 13620 |
21 |
| JTEKT Corporation | 2423 |
21 |
| Ford Global Technologies, LLC | 19702 |
17 |
| American Axle & Manufacturing, Inc. | 649 |
12 |
| Deere & Company | 6845 |
11 |
| Sikorsky Aircraft Corporation | 1150 |
11 |
| Toyota Motor Corporation | 28582 |
10 |
| Valeo Embrayages | 590 |
10 |
| Hyundai Motor Company | 19021 |
9 |
| Aisin AW Co., Ltd. | 2430 |
9 |
| Magna Powertrain GmbH & Co KG | 257 |
9 |
| GKN Automotive Limited | 300 |
8 |
| Kia Motors Corporation | 7946 |
7 |
| Other owners | 271 |