- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 1/28 - Control of machines or pumps with stationary cylinders
Patent holdings for IPC class F04B 1/28
Total number of patents in this class: 26
10-year publication summary
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2
|
5
|
3
|
1
|
0
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2
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1
|
1
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2
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Active Products Inc. | 24 |
6 |
| Robert Bosch GmbH | 43294 |
2 |
| Schlumberger Canada Limited | 7487 |
1 |
| Schlumberger Technology B.v. | 5245 |
1 |
| Schlumberger Holdings Limited | 2754 |
1 |
| Caterpillar Inc. | 9998 |
1 |
| Toyota Industries Corporation | 1169 |
1 |
| Ameriforge Group Inc. | 37 |
1 |
| Jiangsu Hengli Hydraulic Co., Ltd | 24 |
1 |
| MAHLE International GmbH | 2851 |
1 |
| Prad Research and Development Limited | 2684 |
1 |
| Putzmeister Engineering GmbH | 354 |
1 |
| RareCyte, Inc. | 154 |
1 |
| Safran Aircraft Engines | 6474 |
1 |
| Sauer-Danfoss ApS | 19 |
1 |
| Services Petroliers Schlumberger | 5923 |
1 |
| Jiangsu Hengli Hydraulic Technology Co., Ltd. | 9 |
1 |
| Regetns of the University of Minnesota | 1 |
1 |
| Briggs & Stratton, LLC | 685 |
1 |
| Poisedon Fluid Power, LLC | 1 |
1 |
| Other owners | 0 |