- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 13/08 - Units comprising pumps and their driving means the pump being electrically driven for submerged use
Patent holdings for IPC class F04D 13/08
Total number of patents in this class: 1284
10-year publication summary
|
89
|
94
|
95
|
106
|
92
|
83
|
90
|
92
|
94
|
59
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21078 |
88 |
| Schlumberger Technology Corporation | 11054 |
50 |
| Baker Hughes Incorporated | 5175 |
46 |
| Saudi Arabian Oil Company | 13656 |
38 |
| Baker Hughes Oilfield Operations, LLC | 2390 |
37 |
| Schlumberger Canada Limited | 7432 |
35 |
| Ebara Corporation | 2223 |
34 |
| Services Petroliers Schlumberger | 5884 |
31 |
| Schlumberger Technology B.v. | 5223 |
30 |
| Baker Hughes Holdings LLC | 3002 |
27 |
| Xylem Europe GmbH | 219 |
23 |
| Husqvarna AB | 2958 |
20 |
| Sulzer Management AG | 685 |
19 |
| State Farm Mutual Automobile Insurance Company | 3183 |
16 |
| OneSubsea IP UK Limited | 424 |
13 |
| Baker Hughes, a GE Company, LLC | 2106 |
13 |
| General Electric Company | 13840 |
12 |
| GE Oil & Gas ESP, Inc. | 82 |
12 |
| Aker Subsea AS | 127 |
11 |
| FMC Technologies, Inc. | 609 |
10 |
| Other owners | 719 |