- 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: 478
10-year publication summary
|
64
|
41
|
48
|
45
|
40
|
28
|
39
|
31
|
29
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sulzer Management AG | 689 |
39 |
| Halliburton Energy Services, Inc. | 21151 |
35 |
| Grundfos Holding A/S | 584 |
27 |
| Schlumberger Technology Corporation | 11423 |
17 |
| Baker Hughes Holdings LLC | 2979 |
17 |
| Saudi Arabian Oil Company | 13931 |
15 |
| KSB SE & Co. KGaA | 712 |
15 |
| Baker Hughes Oilfield Operations, LLC | 2427 |
10 |
| Nuovo Pignone Tecnologie S.r.l. | 1132 |
10 |
| Xylem Europe GmbH | 219 |
8 |
| Mitsubishi Heavy Industries, Ltd. | 9002 |
7 |
| National Oilwell Varco, L.P. | 1701 |
7 |
| Flowserve Pte. Ltd | 370 |
7 |
| Schlumberger Canada Limited | 7552 |
6 |
| Flowserve Management Company | 197 |
6 |
| Fluid Handling LLC | 251 |
6 |
| KSB Aktiengesellschaft | 158 |
6 |
| Baker Hughes ESP, Inc. | 67 |
6 |
| OneSubsea IP UK Limited | 432 |
5 |
| Baker Hughes, a GE Company, LLC | 2102 |
5 |
| Other owners | 224 |