- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 1/0404 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement - Details or component parts
Patent holdings for IPC class F04B 1/0404
Total number of patents in this class: 49
10-year publication summary
|
2
|
2
|
3
|
7
|
5
|
4
|
2
|
9
|
13
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Poclain Hydraulics Industrie | 234 |
8 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 209 |
5 |
| SPM Oil & Gas Inc. | 316 |
5 |
| Robert Bosch GmbH | 41786 |
4 |
| Danfoss Power Solutions (Jiangsu) Co., Ltd. | 10 |
3 |
| Halliburton Energy Services, Inc. | 20438 |
2 |
| ThyssenKrupp AG | 3207 |
2 |
| Kerr Machine Co. | 118 |
2 |
| ThyssenKrupp Dynamic Components GmbH | 26 |
2 |
| Caterpillar Inc. | 9166 |
1 |
| Lockheed Martin Corporation | 3307 |
1 |
| ElringKlinger AG | 511 |
1 |
| ElringKlinger Kunststofftechnik GmbH | 26 |
1 |
| FMC Technologies, Inc. | 586 |
1 |
| Forum US, Inc. | 330 |
1 |
| Moog GmbH | 48 |
1 |
| National Oilwell Varco, L.P. | 1627 |
1 |
| Wanner Engineering, Inc. | 53 |
1 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 430 |
1 |
| Ziehl-abegg SE | 203 |
1 |
| Other owners | 5 |