- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 7/04 - Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogeneous
Patent holdings for IPC class F04D 7/04
Total number of patents in this class: 671
10-year publication summary
|
57
|
64
|
45
|
50
|
41
|
60
|
41
|
34
|
36
|
26
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Weir Minerals Australia, Ltd. | 312 |
81 |
| KSB SE & Co. KGaA | 746 |
26 |
| Xylem Europe GmbH | 227 |
20 |
| Sulzer Management AG | 719 |
18 |
| Halliburton Energy Services, Inc. | 21300 |
16 |
| Ebara Corporation | 2385 |
16 |
| Weir Slurry Group, Inc. | 62 |
14 |
| Nuhn Industries Limited | 64 |
10 |
| Terumo Kabushiki Kaisha | 5919 |
8 |
| Brinkmann Pumpen K.h. Brinkmann GmbH & Co. KG | 30 |
8 |
| IHC Holland IE B.V. | 261 |
8 |
| Metso Sweden AB | 68 |
8 |
| PENTAIR Flow Technologies, LLC | 176 |
8 |
| Vaughan Co., Inc. | 28 |
8 |
| Xylem IP Management S.A R.L. | 69 |
8 |
| FLSmidth A/S | 785 |
8 |
| Liberty Pumps Inc. | 45 |
7 |
| Saudi Arabian Oil Company | 14416 |
7 |
| Weir Minerals Europe Limited | 17 |
7 |
| Andritz Oy | 294 |
6 |
| Other owners | 379 |