- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16D - Couplings for transmitting rotationclutchesbrakes
- F16D 121/04 - Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
Patent holdings for IPC class F16D 121/04
Total number of patents in this class: 506
10-year publication summary
|
51
|
57
|
55
|
59
|
48
|
47
|
33
|
26
|
35
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| HL Mando Corporation | 1779 |
37 |
| Akebono Brake Industry Co., Ltd. | 362 |
33 |
| Hitachi Astemo, Ltd. | 6409 |
19 |
| Schaeffler Technologies AG & Co. KG | 10707 |
18 |
| Brembo S.p.A. | 495 |
14 |
| Hitachi Automotive Systems, Ltd. | 3954 |
13 |
| Robert Bosch GmbH | 43587 |
13 |
| Shimano Inc. | 3295 |
13 |
| Goodrich Corporation | 2175 |
13 |
| Hyundai Mobis Co., Ltd. | 3485 |
13 |
| Toyota Motor Corporation | 34633 |
12 |
| Mazda Motor Corporation | 3271 |
10 |
| ADVICS Co., Ltd. | 1342 |
9 |
| Continental Automotive Technologies GmbH | 2815 |
9 |
| KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH | 646 |
8 |
| Hyundai Motor Company | 23762 |
7 |
| Ausco Products, Inc. | 29 |
7 |
| ZF Active Safety GmbH | 259 |
7 |
| Ford Global Technologies, LLC | 21274 |
6 |
| Chassis Brakes International B.V. | 57 |
6 |
| Other owners | 239 |