- 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 13/044 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
Patent holdings for IPC class F15B 13/044
Total number of patents in this class: 474
10-year publication summary
|
38
|
46
|
44
|
34
|
34
|
25
|
38
|
24
|
31
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 10025 |
20 |
| Volvo Construction Equipment AB | 1205 |
19 |
| Hamilton Sundstrand Corporation | 5010 |
15 |
| Woodward, Inc. | 669 |
12 |
| Danfoss A/S | 1385 |
12 |
| HYDAC Fluidtechnik GmbH | 137 |
11 |
| Deere & Company | 7872 |
10 |
| Sun Hydraulics, LLC | 71 |
10 |
| Hitachi Construction Machinery Co., Ltd. | 2689 |
9 |
| Kawasaki Heavy Industries, Limited | 1636 |
9 |
| Kubota Corporation | 4170 |
9 |
| Festo SE & Co. KG | 409 |
9 |
| Robert Bosch GmbH | 43428 |
8 |
| BorgWarner Inc. | 2595 |
7 |
| Mac Valves, Inc. | 79 |
7 |
| Bucher Hydraulics GmbH | 12 |
6 |
| Moog Inc. | 433 |
6 |
| Clearmotion, Inc. | 178 |
6 |
| Schaeffler Technologies AG & Co. KG | 10608 |
5 |
| Doosan Infracore Co., Ltd. | 308 |
5 |
| Other owners | 279 |