- 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: 369
10-year publication summary
|
18
|
34
|
36
|
45
|
34
|
41
|
45
|
33
|
28
|
26
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SPM Oil & Gas Inc. | 296 |
16 |
| Robert Bosch GmbH | 40590 |
12 |
| Graco Minnesota Inc. | 1113 |
12 |
| National Oilwell Varco, L.P. | 1592 |
9 |
| Fluid Metering, Inc. | 34 |
8 |
| Insulet Corporation | 694 |
7 |
| Schlumberger Technology Corporation | 9468 |
6 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 355 |
6 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 189 |
6 |
| Agilent Technologies, Inc. | 2753 |
5 |
| GEA Mechanical Equipment Italia S.p.A. | 45 |
5 |
| Quantum Servo Pumping Technologies Pty Ltd | 15 |
5 |
| Halliburton Energy Services, Inc. | 20064 |
4 |
| A.C. Dispensing Equipment, Inc. | 40 |
4 |
| Enfield Engine Company, LLC | 7 |
4 |
| Oxford NanoPore Technologies Limited | 301 |
4 |
| St9 Gas and Oil, LLC | 32 |
4 |
| Typhon Technology Solutions (U.S.), LLC | 74 |
4 |
| Continental Automotive GmbH | 5604 |
3 |
| Fresenius Medical Care Holdings, Inc. | 1334 |
3 |
| Other owners | 242 |