- 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 11/02 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member
Patent holdings for IPC class F15B 11/02
Total number of patents in this class: 484
10-year publication summary
50
|
26
|
24
|
50
|
53
|
44
|
25
|
20
|
21
|
8
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hitachi Construction Machinery Co., Ltd. | 2498 |
90 |
Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
46 |
Kobelco Construction Machinery Co., Ltd. | 1048 |
32 |
Komatsu Ltd. | 4265 |
30 |
KYB Corporation | 1278 |
22 |
Kayaba Industry Co., Ltd. | 376 |
14 |
Caterpillar Inc. | 8877 |
13 |
Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 245 |
11 |
Kawasaki Heavy Industries, Limited | 1524 |
9 |
Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
9 |
Yanmar Co., Ltd. | 1479 |
9 |
Sumitomo Construction Machinery Co., Ltd. | 175 |
8 |
Changsha Zoomlion Heavy Industry Science and Technology Development Co., Ltd. | 195 |
7 |
Kubota Corporation | 3054 |
7 |
Sumitomo Heavy Industries, Ltd. | 1670 |
7 |
Volvo Construction Equipment AB | 1172 |
7 |
SMC Corporation | 1354 |
6 |
Voith Patent GmbH | 2727 |
6 |
Hunan Sany Intelligent Control Equipment Co., Ltd. | 341 |
5 |
Tadano Ltd. | 467 |
5 |
Other owners | 141 |