- 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 11/042 - 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: 269
10-year publication summary
|
22
|
13
|
18
|
23
|
28
|
33
|
28
|
17
|
20
|
2
|
| 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 |
30 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
11 |
| Caterpillar Inc. | 8877 |
9 |
| Metso Paper, Inc. | 528 |
9 |
| Robert Bosch GmbH | 40953 |
8 |
| Kawasaki Heavy Industries, Limited | 1524 |
7 |
| Kubota Corporation | 3054 |
7 |
| Volvo Construction Equipment AB | 1172 |
7 |
| Caterpillar SARL | 441 |
5 |
| KYB Corporation | 1278 |
5 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 245 |
5 |
| Blue Leaf I.P., Inc. | 2758 |
4 |
| Artemis Intelligent Power Limited | 106 |
4 |
| Kobelco Construction Machinery Co., Ltd. | 1048 |
4 |
| Nordhydraulic AB | 36 |
4 |
| Parker-Hannifin Corporation | 999 |
4 |
| Danfoss A/S | 1259 |
4 |
| Parker Hannifin EMEA S.à.r.l. | 70 |
4 |
| Komatsu Ltd. | 4265 |
3 |
| Stryker Corporation | 3864 |
3 |
| Other owners | 132 |