- 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 11/08 - Servomotor systems without provision for follow-up action with only one servomotor
Patent holdings for IPC class F15B 11/08
Total number of patents in this class: 658
10-year publication summary
|
82
|
89
|
77
|
76
|
51
|
62
|
30
|
40
|
33
|
13
|
| 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. | 2633 |
122 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3090 |
47 |
| KYB Corporation | 1355 |
29 |
| Komatsu Ltd. | 4528 |
26 |
| Kubota Corporation | 3881 |
17 |
| Kobelco Construction Machinery Co., Ltd. | 1136 |
16 |
| Deere & Company | 7562 |
15 |
| Kawasaki Heavy Industries, Limited | 1627 |
14 |
| Caterpillar Inc. | 9527 |
13 |
| Kayaba Industry Co., Ltd. | 357 |
13 |
| Blue Leaf I.P., Inc. | 2818 |
10 |
| HD Hyundai Infracore Co., Ltd | 274 |
8 |
| Nabtesco Corporation | 888 |
7 |
| Showa Corporation | 188 |
7 |
| Parker Intangibles LLC | 1169 |
6 |
| Sumitomo Heavy Industries, Ltd. | 1925 |
6 |
| Voith Patent GmbH | 2756 |
6 |
| The Boeing Company | 20031 |
5 |
| Aisin AW Co., Ltd. | 2333 |
5 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 243 |
5 |
| Other owners | 281 |