- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 18/28 - Rotary-piston pumps specially adapted for elastic fluids of counter-engagement type, i.e. the movement of co-operating members at the points of engagement being in opposite directions of other than internal-axis type
Patent holdings for IPC class F04C 18/28
Total number of patents in this class: 7
10-year publication summary
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0
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0
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1
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0
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0
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0
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0
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3
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1
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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
|
|---|---|---|
| Coool.energy Ltd | 6 |
4 |
| Kobe Steel, Ltd. | 893 |
1 |
| International Electric Company Limited | 6 |
1 |
| Johnson Controls Tyco IP Holdings LLP | 415 |
1 |
| Other owners | 0 |