- 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: 479
10-year publication summary
|
38
|
48
|
46
|
34
|
35
|
27
|
40
|
25
|
32
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 10280 |
19 |
| Volvo Construction Equipment AB | 1222 |
19 |
| Hamilton Sundstrand Corporation | 5014 |
16 |
| Woodward, Inc. | 677 |
12 |
| Danfoss A/S | 1445 |
12 |
| HYDAC Fluidtechnik GmbH | 139 |
11 |
| Deere & Company | 8150 |
10 |
| Hitachi Construction Machinery Co., Ltd. | 2762 |
10 |
| Kubota Corporation | 4409 |
10 |
| Sun Hydraulics, LLC | 74 |
10 |
| Kawasaki Heavy Industries, Limited | 1683 |
9 |
| Festo SE & Co. KG | 436 |
9 |
| Robert Bosch GmbH | 44254 |
7 |
| BorgWarner Inc. | 2582 |
7 |
| Mac Valves, Inc. | 80 |
7 |
| Bucher Hydraulics GmbH | 12 |
6 |
| Moog Inc. | 431 |
6 |
| Oshkosh Corporation | 1628 |
6 |
| Clearmotion, Inc. | 196 |
6 |
| Schaeffler Technologies AG & Co. KG | 11093 |
5 |
| Other owners | 282 |