Methods for synthesis of the tricyclic prostaglandin d2 metabolite methyl ester
US-2026062381-A1 · Mar 5, 2026 · US
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of cyclic ethers
of cyclic 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 | C07C29/103 |
| Official title | {of cyclic ethers} |
| Display label | of cyclic ethers |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 1 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods for synthesis of the tricyclic prostaglandin D2 metabolite methyl ester
US-12466791-B2 · Nov 11, 2025 · US
Process for the ruthenium-catalysed hydrogenation of aldehyde acetals
US-2025206691-A1 · Jun 26, 2025 · US
Process and equipment for producing glycols from carbohydrates and hydrogen with reactor off-gas treatment and hydrogen production
US-2024182387-A1 · Jun 6, 2024 · US
Process for preparing 6-isopropenyl-3-methyl-9-decenyl acetate, and intermediates therefor
US-11795133-B2 · Oct 24, 2023 · US
Methods for synthesis of the tricyclic prostaglandin d2 metabolite methyl ester
US-2023174477-A1 · Jun 8, 2023 · US
System and method for making fuels
US-11565983-B1 · Jan 31, 2023 · US
System and method for making fuels
US-11306039-B1 · Apr 19, 2022 · US
Process for preparing 6-isopropenyl-3-methyl-9-decenyl acetate, and intermediates therefor
US-2022017447-A1 · Jan 20, 2022 · US
Process for production of hexanetriol from 5-hydroxymethylfurfural
US-10081612-B2 · Sep 25, 2018 · US
Method for producing asymmetric conjugated diyne compound and method for producing Z,Z-conjugated diene compound using the same
US-9845304-B2 · Dec 19, 2017 · US
Compositions and methods related to the production of acrylonitrile
US-9708249-B1 · Jul 18, 2017 · US
Method for Producing Asymmetric Conjugated Diyne Compound and Method for Producing Z,Z-Conjugated Diene Compound Using the Same
US-2016229829-A1 · Aug 11, 2016 · US
Furfural to fuel
US-9388351-B2 · Jul 12, 2016 · US
Hydrocracking catalyst, method for producing same, and method for producing hydroxy compound using said catalyst
US-9334211-B2 · May 10, 2016 · US
Synthesis of tetrahydromyrcenol
US-9249074-B2 · Feb 2, 2016 · US
Production of jet fuel-range hydrocarbons from cellulosic biomass
US-2015376511-A1 · Dec 31, 2015 · US
Furfural to fuel
US-2015368575-A1 · Dec 24, 2015 · US
Synthesis of tetrahydromyrcenol
US-2015329451-A1 · Nov 19, 2015 · US
Process for producing 4-cyclohexyl-2-methyl-2-butanol
US-9090533-B2 · Jul 28, 2015 · US