- 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: 133
10-year publication summary
|
11
|
5
|
18
|
12
|
4
|
6
|
2
|
11
|
14
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 14416 |
5 |
| Belgravia Wood Limited | 55 |
5 |
| Halliburton Energy Services, Inc. | 21300 |
4 |
| Pierburg Pump Technology GmbH | 334 |
4 |
| Cooler Master Co., Ltd. | 270 |
3 |
| Weir Minerals Australia, Ltd. | 312 |
3 |
| Nuovo Pignone Tecnologie S.r.l. | 1127 |
3 |
| Grundfos Holding A/S | 616 |
3 |
| Collins Engine Nozzles, Inc. | 287 |
3 |
| General Electric Company | 14021 |
2 |
| Daikin Industries, Ltd. | 10546 |
2 |
| Harris Corporation | 1253 |
2 |
| Elliott Company | 79 |
2 |
| Aerojet Rocketdyne, Inc. | 141 |
2 |
| Amotech Co., Ltd. | 565 |
2 |
| Cooper-Standard Automotive Inc. | 254 |
2 |
| EnviroTech Pumpsystems, Inc. | 7 |
2 |
| Flow Control LLC. | 150 |
2 |
| Haier US Appliance Solutions, Inc. | 4164 |
2 |
| Sulzer Management AG | 719 |
2 |
| Other owners | 78 |