Liquid-crystal medium
US-12595417-B2 · Apr 7, 2026 · US
Unsaturated ethers
Unsaturated ethers · 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 | C07C43/188 |
| Official title | Unsaturated ethers |
| Display label | Unsaturated ethers |
| Total patents | 43 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 6 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Composition for forming organic film, patterning process, and compound
US-12584023-B2 · Mar 24, 2026 · US
Non-cryogenic, ammonia-free reduction of aryl compounds
US-12421178-B2 · Sep 23, 2025 · US
Alkyl enol ether properfume
US-2025257284-A1 · Aug 14, 2025 · US
Liquid-crystal medium
US-2025215323-A1 · Jul 3, 2025 · US
2-(2,4,5-trimethylcyclohex-2-en-1-yl)acetaldehyde and derivatives and their use as aroma chemicals
US-12319647-B2 · Jun 3, 2025 · US
Alkyl enol ether properfume
US-12291691-B2 · May 6, 2025 · US
Spiro Compounds as Malodor Counteracting Ingredients
US-2025066690-A1 · Feb 27, 2025 · US
Spiro compounds as malodor counteracting ingredients
US-12180434-B2 · Dec 31, 2024 · US
Derivatives from 2,5,6-trimethylcyclohex-2-en-1-ol as aroma ingredients
US-2024400497-A1 · Dec 5, 2024 · US
Acetal modifier, polymer, chemically amplified positive resist composition, and resist pattern forming process
US-2024329532-A1 · Oct 3, 2024 · US
Ethers and esters of 1-substituted cycloalkanols for use as aroma chemicals
US-11920104-B2 · Mar 5, 2024 · US
Non-cryogenic, ammonia-free reduction of aryl compounds
US-11866386-B2 · Jan 9, 2024 · US
Adamantane compound, organic electroluminescent device, and electronic apparatus
US-2023365495-A1 · Nov 16, 2023 · US
Cyclic compounds as aroma chemicals
US-2023279560-A1 · Sep 7, 2023 · US
Composition for forming organic film, patterning process, and compound
US-2023280655-A1 · Sep 7, 2023 · US
Spiro compounds as malodor counteracting ingredients
US-2023159853-A1 · May 25, 2023 · US
Fullerene derivative, fullerene derivative production method, deposit, film, and electronic device
US-2023099136-A1 · Mar 30, 2023 · US
2-(2,4,5-trimethylcyclohex-2-en-1-yl)acetaldehyde and derivatives and their use as aroma chemicals
US-2022274904-A1 · Sep 1, 2022 · US
Process to produce a mono vinyl ether
US-11401227-B2 · Aug 2, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C43/188?
- CPC C07C43/188 is the Cooperative Patent Classification code for “Unsaturated ethers.”
- How many patents are filed under CPC C07C43/188 (Unsaturated ethers)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC C07C43/188 growing?
- Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).