- 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: 931
10-year publication summary
|
53
|
77
|
83
|
100
|
89
|
96
|
72
|
73
|
75
|
50
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Graco Minnesota Inc. | 1289 |
66 |
| Halliburton Energy Services, Inc. | 21300 |
64 |
| Putzmeister Engineering GmbH | 365 |
63 |
| Kerr Machine Co. | 182 |
54 |
| Schwing GmbH | 125 |
28 |
| US Well Services LLC | 225 |
19 |
| Precision Planting LLC | 1204 |
18 |
| Schlumberger Technology Corporation | 12005 |
16 |
| Hunan Sany Intelligent Control Equipment Co., Ltd. | 345 |
16 |
| Sany Heavy Industry Co., Ltd. | 238 |
16 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 493 |
16 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 236 |
16 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 404 |
15 |
| SPM Oil & Gas Inc. | 361 |
15 |
| Weir Minerals Netherlands B.V. | 65 |
13 |
| Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
11 |
| National Oilwell Varco, L.P. | 1698 |
9 |
| Vermeer Manufacturing Company | 671 |
8 |
| Wagner Spray Tech Corporation | 385 |
8 |
| GD Energy Products, LLC | 142 |
8 |
| Other owners | 452 |