- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 1/04 - Helico-centrifugal pumps
Patent holdings for IPC class F04D 1/04
Total number of patents in this class: 122
10-year publication summary
|
11
|
11
|
5
|
18
|
12
|
4
|
6
|
2
|
9
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13155 |
5 |
| Halliburton Energy Services, Inc. | 20891 |
4 |
| Pierburg Pump Technology GmbH | 323 |
4 |
| Belgravia Wood Limited | 43 |
4 |
| Weir Minerals Australia, Ltd. | 308 |
3 |
| Grundfos Holding A/S | 556 |
3 |
| Collins Engine Nozzles, Inc. | 282 |
3 |
| General Electric Company | 13780 |
2 |
| Schlumberger Canada Limited | 7296 |
2 |
| Daikin Industries, Ltd. | 9995 |
2 |
| Harris Corporation | 1433 |
2 |
| Elliott Company | 84 |
2 |
| Aerojet Rocketdyne, Inc. | 164 |
2 |
| Cooler Master Co., Ltd. | 227 |
2 |
| Cooper-Standard Automotive Inc. | 254 |
2 |
| EnviroTech Pumpsystems, Inc. | 11 |
2 |
| Flow Control LLC. | 132 |
2 |
| Haier US Appliance Solutions, Inc. | 3610 |
2 |
| Sulzer Management AG | 662 |
2 |
| ViCTORi LLC | 4 |
2 |
| Other owners | 70 |