DIRECT CONVERSION OF GLYCEROL TO ACRYLIC ACID OVER WOx/ZrOx AND MIXED METAL OXIDE
US-2025382254-A1 · Dec 18, 2025 · US
Glycerol
Glycerol · 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 | C07C31/225 |
| Official title | {Glycerol} |
| Display label | Glycerol |
| Total patents | 41 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 2 |
| 2018 | 8 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 4 |
| 2023 | 2 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dehydration and cracking of alpha-, beta-dihydroxy carbonyl compounds to lactic acid and other products
US-2025289777-A1 · Sep 18, 2025 · US
Dehydration and cracking of alpha-, beta-dihydroxy carbonyl compounds to lactic acid and other products
US-12281067-B2 · Apr 22, 2025 · US
Coating composition for forming resist underlayer film for EUV lithography process
US-12228858-B2 · Feb 18, 2025 · US
Polycarbonate polyol and polyurethane
US-11608405-B2 · Mar 21, 2023 · US
Oxopiperazine helix mimetics for control of hypoxia-inducible gene expression
US-11560359-B2 · Jan 24, 2023 · US
Stabilization of polyhydric alcohols by steam injection
US-11203561-B2 · Dec 21, 2021 · US
Dehydration and cracking of alpha-, beta-dihydroxy carbonyl compounds to lactic acid and other products
US-2021163394-A1 · Jun 3, 2021 · US
Alkaline pH-modified edible casein-based films and coatings, and method for the making thereof
US-10906950-B2 · Feb 2, 2021 · US
Method for separating and washing of microparticles via a stratified coflow of non-Newtonian and Newtonian fluids
US-10888804-B2 · Jan 12, 2021 · US
Stabilization of polyhydric alcohols by steam injection
US-2020377438-A1 · Dec 3, 2020 · US
Oxopiperazine helix mimetics for control of Hypoxia-Inducible gene expression
US-10787424-B2 · Sep 29, 2020 · US
Process for manufacturing purified glycerol
US-10723681-B2 · Jul 28, 2020 · US
Method of catalytic conversion of carbohydrates to low-carbon diols by using alloy catalysts
US-10654781-B2 · May 19, 2020 · US
Coating composition for forming resist underlayer film for euv lithography process
US-2020133126-A1 · Apr 30, 2020 · US
Curable composition
US-10611856-B2 · Apr 7, 2020 · US
Three dimensional printing with biomaterial
US-2019322769-A1 · Oct 24, 2019 · US
Polycarbonate polyol and polyurethane
US-2019315908-A1 · Oct 17, 2019 · US
Method of making a composition of an alkanolamine alkylamide and a polyol
US-10266486-B2 · Apr 23, 2019 · US
One vessel process for making 1,2-propanediol from a high fructose feedstock
US-10252961-B2 · Apr 9, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C31/225?
- CPC C07C31/225 is the Cooperative Patent Classification code for “Glycerol.”
- How many patents are filed under CPC C07C31/225 (Glycerol)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC C07C31/225 growing?
- Publication counts under this code: 2 in 2023 vs 4 in 2025 (latest complete years).