- 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 11/02 - 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: 506
10-year publication summary
|
26
|
24
|
50
|
53
|
44
|
25
|
20
|
21
|
24
|
11
|
| 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. | 2617 |
95 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3049 |
49 |
| Komatsu Ltd. | 4492 |
32 |
| Kobelco Construction Machinery Co., Ltd. | 1128 |
32 |
| KYB Corporation | 1349 |
25 |
| Kayaba Industry Co., Ltd. | 358 |
14 |
| Caterpillar Inc. | 9417 |
13 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 243 |
11 |
| Kawasaki Heavy Industries, Limited | 1613 |
9 |
| Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
9 |
| Kubota Corporation | 3706 |
9 |
| Yanmar Co., Ltd. | 1417 |
9 |
| Volvo Construction Equipment AB | 1183 |
8 |
| Sumitomo Construction Machinery Co., Ltd. | 198 |
8 |
| Changsha Zoomlion Heavy Industry Science and Technology Development Co., Ltd. | 195 |
7 |
| Sumitomo Heavy Industries, Ltd. | 1855 |
7 |
| SMC Corporation | 1363 |
6 |
| Voith Patent GmbH | 2741 |
6 |
| Hunan Sany Intelligent Control Equipment Co., Ltd. | 344 |
5 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2863 |
5 |
| Other owners | 147 |