- 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 11/05 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
Patent holdings for IPC class F15B 11/05
Total number of patents in this class: 150
10-year publication summary
2
|
12
|
8
|
14
|
16
|
10
|
4
|
7
|
4
|
1
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hitachi Construction Machinery Co., Ltd. | 2566 |
19 |
Caterpillar Inc. | 9185 |
11 |
Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3020 |
9 |
HYDAC Fluidtechnik GmbH | 134 |
7 |
Walvoil S.p.A. | 51 |
5 |
Robert Bosch GmbH | 41823 |
4 |
Komatsu Ltd. | 4427 |
4 |
Shin Caterpillar Mitsubishi Ltd. | 40 |
4 |
Volvo Construction Equipment AB | 1193 |
4 |
Hitachi Construction Machinery Tierra Co., Ltd. | 193 |
4 |
Doosan Bobcat North America Inc. | 556 |
4 |
Illinois Tool Works Inc. | 11404 |
3 |
Deere & Company | 7348 |
3 |
Caterpillar SARL | 469 |
3 |
Kubota Corporation | 3501 |
3 |
KYB Corporation | 1326 |
3 |
Kawasaki Heavy Industries, Limited | 1592 |
2 |
Purdue Research Foundation | 3483 |
2 |
Bucher Hydraulics S.p.A | 8 |
2 |
Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
2 |
Other owners | 52 |