- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; rotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 7/00 - Rotary-piston machines or pumps with fluid ring or the like
Patent holdings for IPC class F04C 7/00
Total number of patents in this class: 15
10-year publication summary
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3
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4
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1
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1
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0
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1
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2
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1
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2
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Jets Invest AS | 5 |
2 |
| Safran Helicopter Engines | 676 |
2 |
| Agam Energy Systems Ltd. | 11 |
1 |
| Catalytec | 6 |
1 |
| Edwards Limited | 764 |
1 |
| ITT Manufacturing Enterprises LLC | 518 |
1 |
| Jets AS | 29 |
1 |
| Sterling Industry Consult GmbH | 20 |
1 |
| Truma Gerätetechnik GmbH & Co. KG | 283 |
1 |
| Nordea Bank AB | 5 |
1 |
| Edwards Technologies Vacuum Engineering (Qingdao) Co Ltd | 21 |
1 |
| Weihai Lingyun Fluid Transmission Technology Co. Ltd. | 2 |
1 |
| JSC Zago Technology | 5 |
1 |
| Other owners | 0 |