- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 1/0538 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders with two or more serially arranged radial piston-cylinder units located side-by-side
Patent holdings for IPC class F04B 1/0538
Total number of patents in this class: 60
10-year publication summary
|
2
|
1
|
2
|
10
|
6
|
8
|
14
|
9
|
12
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kerr Machine Co. | 117 |
38 |
| SPM Oil & Gas Inc. | 316 |
3 |
| Caterpillar Inc. | 9149 |
2 |
| Artemis Intelligent Power Limited | 105 |
2 |
| Danfoss Power Solutions GmbH & Co. OHG | 72 |
2 |
| Katadyn Desalination, LLC | 8 |
2 |
| St9 Gas and Oil, LLC | 9 |
2 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 208 |
2 |
| GD Energy Products, LLC | 91 |
2 |
| Cummins Inc. | 2467 |
1 |
| Delaware Capital Formation, Inc. | 485 |
1 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 427 |
1 |
| New Leaf Management Ltd. | 4 |
1 |
| BJ Energy Solutions, LLC | 99 |
1 |
| Other owners | 0 |