Purification of an ethylenically unsaturated alcohol stream, preparation of an ethylenically unsaturated aldehyde, in particular prenal, and compounds derived therefrom
US-2025340502-A1 · Nov 6, 2025 · US
from acetals, e.g. by dealcoholysis
from acetals, e.g. by dealcoholysis · 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 | C07C41/28 |
| Official title | from acetals, e.g. by dealcoholysis |
| Display label | from acetals, e.g. by dealcoholysis |
| Total patents | 39 |
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 | 4 |
| 2017 | 4 |
| 2018 | 5 |
| 2019 | 7 |
| 2020 | 5 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for the ruthenium-catalysed hydrogenation of aldehyde acetals
US-2025206691-A1 · Jun 26, 2025 · US
Muguet type fragrance compounds
US-2023357664-A1 · Nov 9, 2023 · US
Etherification process
US-11472759-B2 · Oct 18, 2022 · US
Vinyl-ethers and methods of their production
US-2022227693-A1 · Jul 21, 2022 · US
Selective acetalization / etherification process
US-11377615-B2 · Jul 5, 2022 · US
Selective Acetalization / Etherification Process
US-2021363454-A1 · Nov 25, 2021 · US
Etherification Process
US-2021363084-A1 · Nov 25, 2021 · US
Synthesis of 2′-fluoro-6′-methylene-carbocyclic adenosine (FMCA) and 2′-fluoro-6′methylene-carbocyclic guanosine (FMCG)
US-10995093-B2 · May 4, 2021 · US
Nitrogen and/or oxygen-containing hydrofluoroolefins and methods of making and using the same
US-10934247-B2 · Mar 2, 2021 · US
Mannitol-based amphipathic compound and use thereof
US-10889609-B2 · Jan 12, 2021 · US
Homogeneous catalysts that are recoverable by host-guest interactions
US-10828628-B2 · Nov 10, 2020 · US
Water soluble homogeneous catalysts that are recoverable by phase selectivity and host-guest interactions
US-10737255-B2 · Aug 11, 2020 · US
Synthesis of 2'-Fluoro-6'-Methylene-Carbocyclic Adenosine (FMCA) and 2'-Fluoro-6'Methylene-Carbocyclic Guanosine (FMCG)
US-2020207770-A1 · Jul 2, 2020 · US
Nitrogen and/or oxygen-containing hydrofluoroolefins and methods of making and using the same
US-2020071258-A1 · Mar 5, 2020 · US
Synthesis of 2′-fluoro-6′-methylene-carbocyclic adenosine (FMCA) and 2′-fluoro-6′-methylene-carbocyclic guanosine (FMCG)
US-10533008-B2 · Jan 14, 2020 · US
Homogeneous Catalysts That Are Recoverable By Host Guest Interactions
US-2019344255-A1 · Nov 14, 2019 · US
Water Soluble Homogeneous Catalysts That Are Recoverable By Phase Selectivity And Host-Guest Interactions
US-2019270079-A1 · Sep 5, 2019 · US
Homogeneous catalysts that are recoverable by host guest interactions
US-10357763-B2 · Jul 23, 2019 · US
Water soluble homogeneous catalysts that are recoverable by phase selectivity and host-guest interactions
US-10300470-B2 · May 28, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C41/28?
- CPC C07C41/28 is the Cooperative Patent Classification code for “from acetals, e.g. by dealcoholysis.”
- How many patents are filed under CPC C07C41/28 (from acetals, e.g. by dealcoholysis)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC C07C41/28 growing?
- Publication counts under this code: 1 in 2023 vs 2 in 2025 (latest complete years).