- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 9/115 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction
Patent holdings for IPC class F04B 9/115
Total number of patents in this class: 23
10-year publication summary
|
6
|
0
|
3
|
3
|
1
|
0
|
0
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 392 |
2 |
| Centre National de La Recherche Scientifique | 10812 |
1 |
| Schaeffler Technologies AG & Co. KG | 10558 |
1 |
| Avure Technologies AB | 20 |
1 |
| Goodrich Actuation Systems SAS | 180 |
1 |
| Hansen Downhole Pump Solutions AS | 10 |
1 |
| Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
1 |
| Oilgear Company, The | 24 |
1 |
| Pressure Biosciences, Inc. | 30 |
1 |
| Renergy Technologies Ltd. | 1 |
1 |
| SMC Corporation | 1371 |
1 |
| Groupe e SA | 1 |
1 |
| Udiflow Limited | 1 |
1 |
| About DT Ltd | 1 |
1 |
| Fluido Sistem S.r.l. | 1 |
1 |
| Sany Automobile Manufacturing Co., Ltd. | 147 |
1 |
| VAN DER WALT, Louis, Stephanus | 58 |
1 |
| Wärtsilä Services Switzerland Ltd | 8 |
1 |
| Yta B.V. | 5 |
1 |
| Baker Hughes Energy Technology UK Limited | 230 |
1 |
| Other owners | 2 |