- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- 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: 383
10-year publication summary
|
34
|
36
|
45
|
34
|
41
|
45
|
33
|
30
|
31
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SPM Oil & Gas Inc. | 304 |
16 |
| Graco Minnesota Inc. | 1124 |
13 |
| Robert Bosch GmbH | 40953 |
12 |
| National Oilwell Varco, L.P. | 1604 |
11 |
| Fluid Metering, Inc. | 38 |
9 |
| Insulet Corporation | 736 |
7 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 196 |
7 |
| Schlumberger Technology Corporation | 9690 |
6 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 396 |
6 |
| Halliburton Energy Services, Inc. | 20165 |
5 |
| Agilent Technologies, Inc. | 2744 |
5 |
| GEA Mechanical Equipment Italia S.p.A. | 50 |
5 |
| Quantum Servo Pumping Technologies Pty Ltd | 15 |
5 |
| Typhon Technology Solutions (U.S.), LLC | 78 |
5 |
| Caterpillar Inc. | 8877 |
4 |
| A.C. Dispensing Equipment, Inc. | 39 |
4 |
| Enfield Engine Company, LLC | 7 |
4 |
| Oxford NanoPore Technologies Limited | 297 |
4 |
| US Well Services LLC | 212 |
4 |
| Liberty Advanced Equipment Technologies LLC | 18 |
4 |
| Other owners | 247 |