Preparation of acetate compounds via a ketene compound
US-11091424-B2 · Aug 17, 2021 · US
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from ketenes or polyketenes
from ketenes or polyketenes · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C67/46 |
| Official title | from ketenes or polyketenes |
| Display label | from ketenes or polyketenes |
| Total patents | 7 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Preparation of acetate compounds via a ketene compound
US-2020308094-A1 · Oct 1, 2020 · US
1-hydroxymethyl-1,2,2,6-tetramethyl-cyclohexane and derivatives thereof and their use as aroma chemicals
US-2019169108-A1 · Jun 6, 2019 · US
Method for producing an alkyl 3-hydroxybutyrate
US-9255059-B2 · Feb 9, 2016 · US
Methods for Producing Fluorine-Containing Hydroxyaldehyde, Fluorine-Containing Propanediol, and Fluorine-Containing Alcohol Monomer
US-2015361026-A1 · Dec 17, 2015 · US
Process for the preparation of (3R)-hydroxybutyl (3R)-hydroxybutyrate by enzymatic enantioselective reduction employing Lactobacillus brevis alcohol dehydrogenase
US-9034613-B2 · May 19, 2015 · US
Method for producing an alkyl 3-hydroxybutyrate
US-2015038734-A1 · Feb 5, 2015 · US