Method to produce water-soluble sugars from biomass using solvents containing lactones
US-2017298458-A1 · Oct 19, 2017 · US
Preparation from natural products
Preparation from natural products · 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 | C07D307/50 |
| Official title | Preparation from natural products |
| Display label | Preparation from natural products |
| Total patents | 194 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 28 |
| 2016 | 27 |
| 2017 | 20 |
| 2018 | 23 |
| 2019 | 27 |
| 2020 | 23 |
| 2021 | 17 |
| 2022 | 10 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for preparing furfural from biomass
US-2017240518-A1 · Aug 24, 2017 · US
Energy-efficient and environmentally friendly process for the production of target chemical compounds from cellulosic material
US-2017233359-A1 · Aug 17, 2017 · US
Process for the production and isolation of 5-hydroxymethylfurfural
US-2017233363-A1 · Aug 17, 2017 · US
Process for preparing furfural from biomass
US-2017226076-A1 · Aug 10, 2017 · US
Amorphous polyester from bio-based bis-furan assembly
US-9527952-B1 · Dec 27, 2016 · US
Novel process for conversion of hemicellulose into c5 sugars using ionic liquids
US-2016347781-A1 · Dec 1, 2016 · US
Process for making hmf from sugars with reduced byproduct formation, and improved stability hmf compositions
US-2016332978-A1 · Nov 17, 2016 · US
Method for preparing furan derivatives from biomass
US-2016304480-A1 · Oct 20, 2016 · US
Method for producing 2-furaldehyde
US-2016304482-A1 · Oct 20, 2016 · US
Production of furfural from xylose
US-2016304481-A1 · Oct 20, 2016 · US
Method of preparing furfural compounds
US-9469619-B2 · Oct 18, 2016 · US
Catalytic biomass conversion methods, catalysts, and methods of making the same
US-2016289150-A1 · Oct 6, 2016 · US
Methods for High Yield Production of Furans from Biomass Sugars at Mild Operating Conditions
US-2016281120-A1 · Sep 29, 2016 · US
Process for the preparation of monoethylene glycol
US-9440897-B2 · Sep 13, 2016 · US
Continuous processes for hydrolyzing hemicelluloses from ligocellulosic materials with cleaning system
US-9435002-B2 · Sep 6, 2016 · US
Conversion of biomass
US-9428479-B2 · Aug 30, 2016 · US
Process for making HMF from sugars with reduced byproduct formation, and improved stability HMF compositions
US-9422257-B2 · Aug 23, 2016 · US
Process for the synthesis of 5-hydroxymethylfurfural from saccharides
US-9409877-B2 · Aug 9, 2016 · US
Method for producing 2-furaldehyde
US-9403787-B2 · Aug 2, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D307/50?
- CPC C07D307/50 is the Cooperative Patent Classification code for “Preparation from natural products.”
- How many patents are filed under CPC C07D307/50 (Preparation from natural products)?
- Our database includes 194 publications tagged with this CPC code.
- Is patent activity under CPC C07D307/50 growing?
- Publication counts under this code: 4 in 2024 vs 8 in 2025 (latest complete years).