- 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: 466
10-year publication summary
|
32
|
51
|
57
|
55
|
59
|
48
|
45
|
26
|
21
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Akebono Brake Industry Co., Ltd. | 361 |
32 |
| HL Mando Corporation | 1602 |
30 |
| Hitachi Astemo, Ltd. | 6358 |
19 |
| Schaeffler Technologies AG & Co. KG | 9731 |
16 |
| Hitachi Automotive Systems, Ltd. | 3958 |
13 |
| Robert Bosch GmbH | 42411 |
13 |
| Shimano Inc. | 3221 |
13 |
| Hyundai Mobis Co., Ltd. | 3101 |
13 |
| Toyota Motor Corporation | 31377 |
12 |
| Goodrich Corporation | 2100 |
12 |
| Brembo S.p.A. | 442 |
11 |
| Mazda Motor Corporation | 3113 |
10 |
| ADVICS Co., Ltd. | 1272 |
9 |
| Continental Automotive Technologies GmbH | 2594 |
8 |
| Hyundai Motor Company | 21501 |
7 |
| Ausco Products, Inc. | 33 |
7 |
| Ford Global Technologies, LLC | 20396 |
6 |
| Chassis Brakes International B.V. | 58 |
6 |
| Kia Motors Corporation | 7760 |
5 |
| KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH | 611 |
5 |
| Other owners | 219 |