- 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: 613
10-year publication summary
|
53
|
57
|
64
|
45
|
50
|
41
|
60
|
41
|
30
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Weir Minerals Australia, Ltd. | 302 |
74 |
| KSB SE & Co. KGaA | 693 |
25 |
| Sulzer Management AG | 655 |
18 |
| Xylem Europe GmbH | 210 |
17 |
| Weir Slurry Group, Inc. | 67 |
16 |
| Halliburton Energy Services, Inc. | 20649 |
14 |
| Ebara Corporation | 2117 |
13 |
| Nuhn Industries Limited | 57 |
9 |
| Terumo Kabushiki Kaisha | 5481 |
8 |
| Brinkmann Pumpen K.h. Brinkmann GmbH & Co. KG | 29 |
8 |
| Vaughan Co., Inc. | 28 |
8 |
| Xylem IP Management S.A R.L. | 70 |
8 |
| Metso Outotec Sweden AB | 17 |
8 |
| PENTAIR Flow Technologies, LLC | 171 |
7 |
| Saudi Arabian Oil Company | 12711 |
7 |
| Weir Minerals Europe Limited | 17 |
7 |
| FLSmidth A/S | 778 |
7 |
| Battlemax (Pty) Ltd | 34 |
6 |
| Frideco AG | 54 |
6 |
| ITT Manufacturing Enterprises, Inc. | 174 |
6 |
| Other owners | 341 |