- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 1/06 - Multi-stage pumps
Patent holdings for IPC class F04D 1/06
Total number of patents in this class: 452
10-year publication summary
|
35
|
64
|
41
|
48
|
45
|
40
|
27
|
38
|
31
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sulzer Management AG | 677 |
36 |
| Halliburton Energy Services, Inc. | 20946 |
33 |
| Grundfos Holding A/S | 563 |
24 |
| Baker Hughes Holdings LLC | 3001 |
17 |
| Schlumberger Technology Corporation | 10881 |
16 |
| Saudi Arabian Oil Company | 13372 |
15 |
| KSB SE & Co. KGaA | 699 |
15 |
| Nuovo Pignone Tecnologie S.r.l. | 998 |
10 |
| Baker Hughes Oilfield Operations, LLC | 2322 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 8787 |
7 |
| National Oilwell Varco, L.P. | 1686 |
7 |
| Schlumberger Canada Limited | 7366 |
6 |
| Flowserve Management Company | 193 |
6 |
| Fluid Handling LLC | 246 |
6 |
| KSB Aktiengesellschaft | 162 |
6 |
| Xylem Europe GmbH | 215 |
6 |
| Baker Hughes ESP, Inc. | 69 |
6 |
| ITT Manufacturing Enterprises LLC | 408 |
5 |
| Baker Hughes, a GE Company, LLC | 2110 |
5 |
| Flowserve Pte. Ltd | 356 |
5 |
| Other owners | 212 |