- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F15B - Systems acting by means of fluids in general; fluid-pressure actuators, e.g. servomotors; details of fluid-pressure systems, not otherwise provided for
- F15B 21/00 - Common features of fluid actuator systems; Fluid-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: 476
10-year publication summary
|
62
|
39
|
33
|
53
|
32
|
58
|
42
|
38
|
42
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 40953 |
21 |
| Danfoss A/S | 1259 |
15 |
| HYDAC Technology GmbH | 221 |
14 |
| Kerr Machine Co. | 98 |
11 |
| Festo SE & Co. KG | 349 |
10 |
| Deere & Company | 6845 |
9 |
| Caterpillar Inc. | 8877 |
9 |
| Schaeffler Technologies AG & Co. KG | 8880 |
6 |
| WABCO GmbH | 483 |
6 |
| Hitachi Construction Machinery Co., Ltd. | 2498 |
5 |
| Boston Dynamics, Inc. | 453 |
5 |
| Blue Leaf I.P., Inc. | 2758 |
5 |
| Festo AG & Co. KG | 313 |
5 |
| RPM Industries, LLC | 65 |
5 |
| Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | 1407 |
5 |
| Massachusetts Institute of Technology | 9795 |
4 |
| Baxter International Inc. | 2425 |
4 |
| Baxter Healthcare S.A. | 1810 |
4 |
| Changsha Zoomlion Heavy Industry Science and Technology Development Co., Ltd. | 195 |
4 |
| Fisher Controls International LLC | 1520 |
4 |
| Other owners | 325 |