- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 19/12 - Scoop devices of helical or screw type
Patent holdings for IPC class F04B 19/12
Total number of patents in this class: 23
10-year publication summary
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1
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2
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1
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1
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1
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3
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2
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3
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2
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2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lambhusasund ehf | 38 |
4 |
| Enairon AB | 10 |
4 |
| Spira Energy AB | 3 |
2 |
| Percheron Power, LLC | 6 |
2 |
| MMC First Process AS | 24 |
2 |
| Furukawa Industrial Machinery Systems Co., Ltd. | 11 |
1 |
| Heishin Ltd. | 93 |
1 |
| Spaans Babcock Limited | 1 |
1 |
| Ehrnberg Solutions AB | 1 |
1 |
| The American University in Cairo | 37 |
1 |
| Chugoku Tokushu Kabushiki Kaisha | 1 |
1 |
| OK Future Co., Ltd. | 1 |
1 |
| RG International Group | 1 |
1 |
| CILLIE, Willem, Isaac | 3 |
1 |
| Other owners | 0 |