- 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: 446
10-year publication summary
|
38
|
69
|
45
|
54
|
49
|
43
|
29
|
40
|
32
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sulzer Management AG | 662 |
36 |
| Halliburton Energy Services, Inc. | 20891 |
33 |
| Grundfos Holding A/S | 556 |
24 |
| Baker Hughes Holdings LLC | 3007 |
17 |
| Schlumberger Technology Corporation | 10717 |
16 |
| Saudi Arabian Oil Company | 13155 |
15 |
| KSB SE & Co. KGaA | 700 |
15 |
| Nuovo Pignone Tecnologie S.r.l. | 973 |
10 |
| Baker Hughes Oilfield Operations, LLC | 2301 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 8715 |
7 |
| National Oilwell Varco, L.P. | 1671 |
7 |
| Schlumberger Canada Limited | 7296 |
6 |
| Fluid Handling LLC | 244 |
6 |
| KSB Aktiengesellschaft | 163 |
6 |
| Xylem Europe GmbH | 214 |
6 |
| Baker Hughes ESP, Inc. | 68 |
6 |
| ITT Manufacturing Enterprises LLC | 406 |
5 |
| Baker Hughes, a GE Company, LLC | 2112 |
5 |
| Schlumberger Technology B.v. | 5168 |
4 |
| Flowserve Management Company | 195 |
4 |
| Other owners | 209 |