Freeze concentration for urine-based fertilizer production
US-2023202940-A1 · Jun 29, 2023 · US
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concentrating solutions by removing frozen solvent therefrom
concentrating solutions by removing frozen solvent therefrom · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D9/04 |
| Official title | concentrating solutions by removing frozen solvent therefrom |
| Display label | concentrating solutions by removing frozen solvent therefrom |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Freeze concentration for urine-based fertilizer production
US-11578011-B2 · Feb 14, 2023 · US
Method for preparing adrenochrome by catalytic oxidation using nitrogen-doped carbon nanotubes
US-11420939-B2 · Aug 23, 2022 · US
Solid-liquid distribution detection apparatus
US-11187678-B2 · Nov 30, 2021 · US
Method for preparing adrenochrome by catalytic oxidation using nitrogen-doped carbon nanotubes
US-2021253526-A1 · Aug 19, 2021 · US
Solid-liquid distribution detecting apparatus
US-2021190732-A1 · Jun 24, 2021 · US
Apparatus and method for generating dialysate for dialysis
US-11000642-B2 · May 11, 2021 · US
Method for detecting solid-liquid distribution in solid-liquid separation column of solid-liquid separation device and detection device
US-10935412-B2 · Mar 2, 2021 · US
Method for detecting solid-liquid distribution in solid-liquid separation column of solid-liquid separation device and detection device
US-2020309588-A1 · Oct 1, 2020 · US
Crystal of reduced glutathione
US-10640532-B2 · May 5, 2020 · US
Freeze concentration for urine-based fertilizer production
US-2020055792-A1 · Feb 20, 2020 · US
Apparatus and method for generating dialysate for dialysis
US-2019224401-A1 · Jul 25, 2019 · US
Simultaneous recovery of organic compounds and extractants
US-10265641-B2 · Apr 23, 2019 · US
Methods and apparatuses for trace and ultratrace analysis
US-10139317-B2 · Nov 27, 2018 · US
Production method for concentrated product using freeze-concentration method
US-2018116235-A1 · May 3, 2018 · US
Crystal of reduced glutathione
US-2018094025-A1 · Apr 5, 2018 · US
Production method for concentrated product using membrane-concentration method and freeze-concentration method
US-9913484-B2 · Mar 13, 2018 · US
Methods and apparatuses for trace and ultratrace analysis
US-2017122845-A1 · May 4, 2017 · US
Method for the manufacture of a polyhydroxy-carboxylic acid
US-9637587-B2 · May 2, 2017 · US
Freezing desalination module
US-2017008778-A1 · Jan 12, 2017 · US