- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 15/02 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
Patent holdings for IPC class F04B 15/02
Total number of patents in this class: 922
10-year publication summary
|
53
|
77
|
83
|
100
|
89
|
96
|
72
|
73
|
74
|
40
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21296 |
64 |
| Graco Minnesota Inc. | 1285 |
64 |
| Putzmeister Engineering GmbH | 353 |
62 |
| Kerr Machine Co. | 178 |
52 |
| Schwing GmbH | 123 |
27 |
| US Well Services LLC | 225 |
19 |
| Precision Planting LLC | 1198 |
18 |
| Sany Heavy Industry Co., Ltd. | 240 |
17 |
| Schlumberger Technology Corporation | 11893 |
16 |
| Hunan Sany Intelligent Control Equipment Co., Ltd. | 345 |
16 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 478 |
16 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 404 |
15 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 230 |
15 |
| SPM Oil & Gas Inc. | 359 |
15 |
| Weir Minerals Netherlands B.V. | 63 |
12 |
| Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
11 |
| National Oilwell Varco, L.P. | 1700 |
9 |
| Vermeer Manufacturing Company | 676 |
8 |
| Wagner Spray Tech Corporation | 384 |
8 |
| GD Energy Products, LLC | 140 |
8 |
| Other owners | 450 |