- 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 2/44 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and having a hinged member with vanes hinged to the inner member
Patent holdings for IPC class F04C 2/44
Total number of patents in this class: 27
10-year publication summary
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3
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1
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3
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2
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0
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3
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4
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5
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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
|
|---|---|---|
| Gorman-Rupp Company, The | 142 |
3 |
| HORN GmbH & Co. KG | 4 |
3 |
| Hanon Systems | 1632 |
2 |
| Pierburg Pump Technology GmbH | 305 |
2 |
| LeimbachCausey, LLC | 2 |
2 |
| LG Electronics Inc. | 69257 |
1 |
| Daikin Industries, Ltd. | 9495 |
1 |
| GoTek Energy, Inc. | 10 |
1 |
| Gullivert Technologies Inc. | 1 |
1 |
| Nantong Guangxing Pneumatic Equipment Co., Ltd. | 11 |
1 |
| Nanyang Technological University | 1739 |
1 |
| Pierburg Pump Technology Italy S.p.A. | 6 |
1 |
| Tocircle Industries AS | 13 |
1 |
| Granipol Construction | 1 |
1 |
| Gullivert Technologies | 1 |
1 |
| Halttec Group Ltd. | 2 |
1 |
| Hydrotech Holding AG | 1 |
1 |
| Suzhou Herobest Pump Industry Co., Ltd. | 1 |
1 |
| Hanon Systems EFP Deutschland GmbH | 79 |
1 |
| Nägele Mechanik GmbH | 1 |
1 |
| Other owners | 0 |