- 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 11/042 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed by means in the feed line
Patent holdings for IPC class F15B 11/042
Total number of patents in this class: 291
10-year publication summary
|
13
|
18
|
23
|
28
|
33
|
28
|
17
|
20
|
20
|
10
|
| 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 |
33 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3090 |
12 |
| Robert Bosch GmbH | 42614 |
9 |
| Metso Paper, Inc. | 425 |
9 |
| Caterpillar Inc. | 9527 |
8 |
| Kubota Corporation | 3881 |
8 |
| Kawasaki Heavy Industries, Limited | 1627 |
7 |
| Stryker Corporation | 5019 |
6 |
| Caterpillar SARL | 477 |
5 |
| KYB Corporation | 1355 |
5 |
| Nordhydraulic AB | 34 |
5 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 243 |
5 |
| Volvo Construction Equipment AB | 1189 |
5 |
| Parker Hannifin EMEA S.à.r.l. | 76 |
5 |
| Blue Leaf I.P., Inc. | 2818 |
4 |
| Artemis Intelligent Power Limited | 100 |
4 |
| Kobelco Construction Machinery Co., Ltd. | 1136 |
4 |
| Parker-Hannifin Corporation | 1033 |
4 |
| Komatsu Ltd. | 4528 |
3 |
| Eagle Industry Co., Ltd. | 1125 |
3 |
| Other owners | 147 |