Apparatus and method for removing voc from polypropylene and reducing odor level by steaming process
US-2024043579-A1 · Feb 8, 2024 · US
Steam distillation
Steam distillation · 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 | B01D3/38 |
| Official title | Steam distillation |
| Display label | Steam distillation |
| Total patents | 154 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 7 |
| 2017 | 6 |
| 2018 | 13 |
| 2019 | 9 |
| 2020 | 26 |
| 2021 | 19 |
| 2022 | 18 |
| 2023 | 16 |
| 2024 | 17 |
| 2025 | 13 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Integrated Process for Ethanol Separation from Fermented Broth for Low Temperature Applications
US-2020325438-A1 · Oct 15, 2020 · US
Pump Mixer Separator Unit
US-2020318539-A1 · Oct 8, 2020 · US
System for continuously purifying reaction product of esterification
US-2020317601-A1 · Oct 8, 2020 · US
Folded fractionation column and process
US-10792585-B2 · Oct 6, 2020 · US
Method and apparatus for extracting botanical oils
US-2020246722-A1 · Aug 6, 2020 · US
Treatment method of an aqueous solution containing urea, ammonia and carbon dioxide and treatment equipment therefor
US-10730761-B2 · Aug 4, 2020 · US
Bilayered structures for solar steam generation
US-10729988-B2 · Aug 4, 2020 · US
Solvent recovery apparatus and solvent recovery method
US-10703875-B2 · Jul 7, 2020 · US
Solvent separation apparatus and waste heat utilization method
US-10689499-B2 · Jun 23, 2020 · US
Waste water treatment
US-2020172410-A1 · Jun 4, 2020 · US
High Conversion Hydrocracking Process
US-2020172818-A1 · Jun 4, 2020 · US
Fuel Oxygen Conversion Unit with a Fuel/Gas Separator
US-2020141337-A1 · May 7, 2020 · US
Fuel Oxygen Conversion Unit
US-2020141574-A1 · May 7, 2020 · US
Fuel Oxygen Conversion Unit
US-2020140110-A1 · May 7, 2020 · US
Fuel Oxygen Conversion Unit With A Fuel Gas Separator
US-2020141575-A1 · May 7, 2020 · US
Solvent separation apparatus and solvent separation method
US-10639562-B2 · May 5, 2020 · US
Method for recovering dimethyl sulfoxide from recovered resist remover
US-2020131122-A1 · Apr 30, 2020 · US
Method and apparatus for extracting botanical oils
US-10617974-B2 · Apr 14, 2020 · US
Method for removing nitriles from hydrogen cyanide
US-10562782-B2 · Feb 18, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D3/38?
- CPC B01D3/38 is the Cooperative Patent Classification code for “Steam distillation.”
- How many patents are filed under CPC B01D3/38 (Steam distillation)?
- Our database includes 154 publications tagged with this CPC code.
- Is patent activity under CPC B01D3/38 growing?
- Publication counts under this code: 17 in 2024 vs 13 in 2025 (latest complete years).