- 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: 665
10-year publication summary
|
81
|
89
|
76
|
76
|
50
|
62
|
29
|
41
|
34
|
20
|
| 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. | 2687 |
122 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3108 |
47 |
| KYB Corporation | 1394 |
29 |
| Komatsu Ltd. | 4625 |
26 |
| Kubota Corporation | 4056 |
17 |
| Deere & Company | 7767 |
16 |
| Kobelco Construction Machinery Co., Ltd. | 1161 |
16 |
| Caterpillar Inc. | 9852 |
14 |
| Kawasaki Heavy Industries, Limited | 1648 |
14 |
| Kayaba Industry Co., Ltd. | 349 |
13 |
| Blue Leaf I.P., Inc. | 2783 |
10 |
| HD Hyundai Infracore Co., Ltd | 284 |
10 |
| Nabtesco Corporation | 881 |
7 |
| Showa Corporation | 188 |
7 |
| Parker Intangibles LLC | 1200 |
6 |
| Sumitomo Heavy Industries, Ltd. | 1982 |
6 |
| Voith Patent GmbH | 2762 |
6 |
| The Boeing Company | 20186 |
5 |
| Aisin AW Co., Ltd. | 2299 |
5 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 243 |
5 |
| Other owners | 284 |