Method for separating and purifying mixture having small difference in boiling points
US-11065556-B2 · Jul 20, 2021 · US
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Head- and side stream
Head- and side stream · 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 | B01D3/4222 |
| Official title | {Head- and side stream} |
| Display label | Head- and side stream |
| Total patents | 4 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for separating and purifying mixture having small difference in boiling points
US-2020230518-A1 · Jul 23, 2020 · US
Process to produce acetic acid with recycle of water
US-10526270-B2 · Jan 7, 2020 · US
Process to produce acetic acid with recycle of water
US-2019055183-A1 · Feb 21, 2019 · US