- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 9/02 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
Patent holdings for IPC class F04B 9/02
Total number of patents in this class: 455
10-year publication summary
|
45
|
34
|
41
|
45
|
36
|
37
|
34
|
35
|
30
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Graco Minnesota Inc. | 1281 |
20 |
| SPM Oil & Gas Inc. | 360 |
18 |
| Robert Bosch GmbH | 44176 |
13 |
| National Oilwell Varco, L.P. | 1700 |
13 |
| Fluid Metering, Inc. | 72 |
11 |
| Halliburton Energy Services, Inc. | 21320 |
9 |
| Insulet Corporation | 940 |
8 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 474 |
8 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 230 |
7 |
| Schlumberger Technology Corporation | 11820 |
6 |
| Typhon Technology Solutions (U.S.), LLC | 105 |
6 |
| Agilent Technologies, Inc. | 2638 |
5 |
| ADVICS Co., Ltd. | 1376 |
5 |
| GEA Mechanical Equipment Italia S.p.A. | 83 |
5 |
| Quantum Servo Pumping Technologies Pty Ltd | 16 |
5 |
| Caterpillar Inc. | 10281 |
4 |
| A.C. Dispensing Equipment, Inc. | 38 |
4 |
| Enfield Engine Company, LLC | 7 |
4 |
| Oxford NanoPore Technologies Limited | 264 |
4 |
| US Well Services LLC | 225 |
4 |
| Other owners | 296 |