- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 9/117 - 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 the pumping members not being mechanically connected to each other
Patent holdings for IPC class F04B 9/117
Total number of patents in this class: 72
10-year publication summary
|
9
|
8
|
5
|
8
|
4
|
2
|
10
|
3
|
5
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Putzmeister Engineering GmbH | 364 |
9 |
| Caterpillar Inc. | 10391 |
7 |
| Graco Minnesota Inc. | 1290 |
4 |
| Schwing Bioset, Inc. | 24 |
4 |
| Schwing GmbH | 125 |
4 |
| Weir Minerals Netherlands B.V. | 65 |
4 |
| Murtech, Inc. | 26 |
3 |
| Fujitsu Limited | 16806 |
2 |
| Alfa Laval Corporate AB | 1347 |
2 |
| Forum US, Inc. | 353 |
2 |
| Mhwirth GmbH | 58 |
2 |
| Epiroc Rock Drills Aktiebolag | 695 |
2 |
| Impact Solutions AS | 5 |
2 |
| Robert Bosch GmbH | 44459 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11137 |
1 |
| Kawasaki Heavy Industries, Limited | 1721 |
1 |
| Alcon, Inc. | 5990 |
1 |
| Arkling Limited | 7 |
1 |
| Cryostar SAS | 116 |
1 |
| Dajustco IP Holdings Inc. | 36 |
1 |
| Other owners | 18 |