- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 47/02 - Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
Patent holdings for IPC class F04B 47/02
Total number of patents in this class: 551
10-year publication summary
|
55
|
77
|
104
|
90
|
77
|
56
|
48
|
42
|
22
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Weatherford Technology Holdings, LLC | 2135 |
66 |
| US Well Services LLC | 212 |
26 |
| Halliburton Energy Services, Inc. | 20165 |
24 |
| Saudi Arabian Oil Company | 11322 |
17 |
| Ravdos Holdings Inc. | 50 |
17 |
| Unico, LLC | 75 |
14 |
| Schlumberger Technology Corporation | 9690 |
12 |
| Bristol, Inc., d/b/a Remote Automation Solutions | 104 |
10 |
| General Electric Company | 18133 |
9 |
| Schneider Electric Systems USA, Inc. | 441 |
8 |
| Typhon Technology Solutions (U.S.), LLC | 78 |
8 |
| Baker Hughes Holdings LLC | 3060 |
7 |
| Caterpillar Inc. | 8877 |
5 |
| Ameriforge Group Inc. | 40 |
5 |
| Ford, Michael Brent | 19 |
5 |
| Petroleo Brasileiro S.A. - Petrobras | 730 |
5 |
| Unico, Inc. | 43 |
5 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
5 |
| Baker Hughes, a GE Company, LLC | 2171 |
5 |
| Crostek Management Corp. | 4 |
4 |
| Other owners | 294 |