- 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 11/08 - 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: 633
10-year publication summary
|
46
|
82
|
89
|
77
|
76
|
51
|
62
|
27
|
38
|
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 |
121 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
45 |
| KYB Corporation | 1278 |
27 |
| Komatsu Ltd. | 4265 |
26 |
| Kobelco Construction Machinery Co., Ltd. | 1048 |
16 |
| Kubota Corporation | 3054 |
15 |
| Deere & Company | 6845 |
14 |
| Kawasaki Heavy Industries, Limited | 1524 |
13 |
| Kayaba Industry Co., Ltd. | 376 |
13 |
| Caterpillar Inc. | 8877 |
12 |
| Blue Leaf I.P., Inc. | 2758 |
10 |
| HD Hyundai Infracore Co., Ltd | 252 |
8 |
| Nabtesco Corporation | 871 |
7 |
| Showa Corporation | 190 |
7 |
| Parker Intangibles LLC | 1237 |
6 |
| Sumitomo Heavy Industries, Ltd. | 1670 |
6 |
| Voith Patent GmbH | 2727 |
6 |
| The Boeing Company | 19843 |
5 |
| Aisin AW Co., Ltd. | 2430 |
5 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 245 |
5 |
| Other owners | 266 |