Algae collection device using escalator-type lift
US-12157980-B2 · Dec 3, 2024 · US
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Rotary drums
Rotary drums · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E02B15/103 |
| Official title | {Rotary drums} |
| Display label | Rotary drums |
| Total patents | 10 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Toothed drum type oil recovery device
US-11624166-B2 · Apr 11, 2023 · US
Toothed drum type oil recovery device
US-2022251793-A1 · Aug 11, 2022 · US
Automated system for cleaning and recovering spilled oil in the ocean using hair felt rollers
US-11401673-B2 · Aug 2, 2022 · US
Algae collection device using escalator-type lift
US-2022213660-A1 · Jul 7, 2022 · US
Multifunctional recovery apparatus of shore adhesion oils
US-11248355-B2 · Feb 15, 2022 · US
Multifunctional recovery apparatus of shore adhesion oils
US-2021381183-A1 · Dec 9, 2021 · US
Automated system for cleaning and recovering spilled oil in the ocean using hair felt rollers
US-2021269997-A1 · Sep 2, 2021 · US
Recovery system for large-scale spilled oil flowing onto and adhered to shore
US-10927519-B1 · Feb 23, 2021 · US
Method for separating liquids and use thereof
US-2017348614-A1 · Dec 7, 2017 · US