- 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 11/17 - Servomotor systems without provision for follow-up action with two or more servomotors using two or more pumps
Patent holdings for IPC class F15B 11/17
Total number of patents in this class: 551
10-year publication summary
|
57
|
49
|
42
|
50
|
43
|
51
|
44
|
39
|
37
|
17
|
| 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 |
67 |
| Volvo Construction Equipment AB | 1172 |
25 |
| Caterpillar Inc. | 8877 |
22 |
| Komatsu Ltd. | 4265 |
21 |
| Kobelco Construction Machinery Co., Ltd. | 1048 |
20 |
| KYB Corporation | 1278 |
16 |
| HD Hyundai Infracore Co., Ltd | 252 |
16 |
| Caterpillar SARL | 441 |
14 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
13 |
| Robert Bosch GmbH | 40953 |
12 |
| Hitachi Construction Machinery Tierra Co., Ltd. | 182 |
12 |
| Kayaba Industry Co., Ltd. | 376 |
10 |
| Kubota Corporation | 3054 |
9 |
| Kawasaki Heavy Industries, Limited | 1524 |
8 |
| Nabtesco Corporation | 871 |
8 |
| Artemis Intelligent Power Limited | 106 |
7 |
| Hydro-Gear Limited Partnership | 355 |
7 |
| Voith Patent GmbH | 2727 |
7 |
| Oshkosh Corporation | 1006 |
6 |
| Yanmar Co., Ltd. | 1479 |
6 |
| Other owners | 245 |