- 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 13/04 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
Patent holdings for IPC class F15B 13/04
Total number of patents in this class: 1011
10-year publication summary
|
99
|
82
|
104
|
115
|
115
|
105
|
86
|
55
|
67
|
19
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 40953 |
37 |
| Caterpillar Inc. | 8877 |
34 |
| Danfoss A/S | 1259 |
28 |
| Hamilton Sundstrand Corporation | 4525 |
27 |
| Deere & Company | 6845 |
26 |
| HYDAC Fluidtechnik GmbH | 130 |
24 |
| Parker-Hannifin Corporation | 999 |
20 |
| Parker Intangibles LLC | 1237 |
18 |
| Woodward, Inc. | 602 |
17 |
| KYB Corporation | 1278 |
16 |
| Fisher Controls International LLC | 1520 |
15 |
| SMC Corporation | 1354 |
15 |
| Volvo Construction Equipment AB | 1172 |
13 |
| HYDAC Systems & Services GmbH | 37 |
12 |
| Hitachi Construction Machinery Co., Ltd. | 2498 |
11 |
| Kawasaki Heavy Industries, Limited | 1524 |
11 |
| The Boeing Company | 19843 |
10 |
| Boston Dynamics, Inc. | 453 |
10 |
| HYDAC Filtertechnik GmbH | 294 |
10 |
| Kubota Corporation | 3054 |
10 |
| Other owners | 647 |