- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F15B - Systems acting by means of fluids in generalfluid-pressure actuators, e.g. servomotorsdetails of fluid-pressure systems, not otherwise provided for
- F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
Patent holdings for IPC class F15B 21/00
Total number of patents in this class: 519
10-year publication summary
|
39
|
33
|
53
|
32
|
58
|
42
|
41
|
44
|
46
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42632 |
21 |
| Danfoss A/S | 1354 |
15 |
| HYDAC Technology GmbH | 237 |
14 |
| Kerr Machine Co. | 133 |
12 |
| Festo SE & Co. KG | 386 |
12 |
| Caterpillar Inc. | 9530 |
10 |
| Deere & Company | 7575 |
9 |
| ZF CV Systems Europe BV | 762 |
7 |
| Hitachi Construction Machinery Co., Ltd. | 2636 |
6 |
| Schaeffler Technologies AG & Co. KG | 9818 |
6 |
| WABCO GmbH | 476 |
6 |
| Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | 1404 |
6 |
| Boston Dynamics, Inc. | 530 |
5 |
| Blue Leaf I.P., Inc. | 2816 |
5 |
| Festo AG & Co. KG | 307 |
5 |
| Fisher Controls International LLC | 1488 |
5 |
| RPM Industries, LLC | 69 |
5 |
| Tyco Fire Products LP | 850 |
5 |
| Massachusetts Institute of Technology | 10036 |
4 |
| Baxter International Inc. | 2400 |
4 |
| Other owners | 357 |