- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 437
10-year publication summary
|
38
|
69
|
45
|
54
|
50
|
43
|
28
|
41
|
29
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sulzer Management AG | 664 |
34 |
| Halliburton Energy Services, Inc. | 20411 |
33 |
| Grundfos Holding A/S | 526 |
23 |
| Baker Hughes Holdings LLC | 3011 |
17 |
| Saudi Arabian Oil Company | 12404 |
15 |
| Schlumberger Technology Corporation | 10228 |
14 |
| KSB SE & Co. KGaA | 670 |
13 |
| Nuovo Pignone Tecnologie S.r.l. | 852 |
10 |
| Baker Hughes Oilfield Operations, LLC | 2111 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 8515 |
7 |
| Extract Companies LLC | 18 |
7 |
| Schlumberger Canada Limited | 7143 |
6 |
| Fluid Handling LLC | 242 |
6 |
| KSB Aktiengesellschaft | 165 |
6 |
| Xylem Europe GmbH | 214 |
6 |
| Baker Hughes ESP, Inc. | 72 |
6 |
| ITT Manufacturing Enterprises LLC | 410 |
5 |
| Baker Hughes, a GE Company, LLC | 2138 |
5 |
| Schlumberger Technology B.v. | 5064 |
4 |
| DAB Pumps S.p.A. | 29 |
4 |
| Other owners | 207 |