- 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: 464
10-year publication summary
|
35
|
64
|
41
|
48
|
45
|
40
|
28
|
38
|
31
|
26
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sulzer Management AG | 685 |
37 |
| Halliburton Energy Services, Inc. | 21090 |
33 |
| Grundfos Holding A/S | 569 |
27 |
| Baker Hughes Holdings LLC | 3002 |
17 |
| Schlumberger Technology Corporation | 11075 |
16 |
| Saudi Arabian Oil Company | 13686 |
15 |
| KSB SE & Co. KGaA | 702 |
15 |
| Nuovo Pignone Tecnologie S.r.l. | 1056 |
10 |
| Baker Hughes Oilfield Operations, LLC | 2393 |
9 |
| Xylem Europe GmbH | 219 |
8 |
| Mitsubishi Heavy Industries, Ltd. | 8900 |
7 |
| National Oilwell Varco, L.P. | 1701 |
7 |
| Flowserve Pte. Ltd | 360 |
7 |
| Schlumberger Canada Limited | 7440 |
6 |
| Flowserve Management Company | 198 |
6 |
| Fluid Handling LLC | 249 |
6 |
| KSB Aktiengesellschaft | 161 |
6 |
| Baker Hughes ESP, Inc. | 68 |
6 |
| ITT Manufacturing Enterprises LLC | 406 |
5 |
| OneSubsea IP UK Limited | 424 |
5 |
| Other owners | 216 |