Aqueous composition comprising dispersed esterified cellulose ether
US-2018282526-A1 · Oct 4, 2018 · US
Preparation of cellulose ether-esters
Preparation of cellulose ether-esters · 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 | C08B13/00 |
| Official title | Preparation of cellulose ether-esters |
| Display label | Preparation of cellulose ether-esters |
| Total patents | 127 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 11 |
| 2017 | 14 |
| 2018 | 24 |
| 2019 | 12 |
| 2020 | 14 |
| 2021 | 12 |
| 2022 | 8 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Injection molding composition containing hypromellose acetate succinate and method for producing same
US-2018282527-A1 · Oct 4, 2018 · US
Process for producing dispersion of esterified cullulose ether
US-2018215880-A1 · Aug 2, 2018 · US
Process for molecular weight reduction of ethersuccinylated polysaccharides
US-10030078-B2 · Jul 24, 2018 · US
Hair fixatives including cellulose ether based polyglucose polymers
US-10016352-B2 · Jul 10, 2018 · US
Composition for hot-melt extrusion and method for producing hot-melt extrusion product using same
US-10016508-B2 · Jul 10, 2018 · US
Hypromellose acetate succinate and method for producing the same
US-2018116968-A1 · May 3, 2018 · US
Hypromellose acetate succinate, method for producing the same and composition containing the same
US-2018118854-A1 · May 3, 2018 · US
Process for producing esterified cellulose ethers of very high molecular weight and low viscosity
US-2018105608-A1 · Apr 19, 2018 · US
Aqueous solution of an esterified cellulose ether
US-2018071396-A1 · Mar 15, 2018 · US
Gelling esterified cellulose ethers
US-2018072820-A1 · Mar 15, 2018 · US
Water-soluble esterified cellulose ethers
US-2018072818-A1 · Mar 15, 2018 · US
Hypromellose acetate succinate and method for producing hypromellose acetate succinate
US-2018057612-A1 · Mar 1, 2018 · US
Hypromellose phthalate and method for producing hypromellose phthalate
US-2018057613-A1 · Mar 1, 2018 · US
Cellulose ethers esterified with dicarboxylic acid
US-9890221-B2 · Feb 13, 2018 · US
Esterified cellulose ethers of very high molecular weight
US-9890220-B2 · Feb 13, 2018 · US
Hypromellose acetate succinate, method for producing the same and composition containing the same
US-9884922-B2 · Feb 6, 2018 · US
Process for fractionating an esterified cellulose ether
US-2018030157-A1 · Feb 1, 2018 · US
Process for preparing an esterified cellulose ether in the presence of an aliphatic carboxylic acid
US-2018030158-A1 · Feb 1, 2018 · US
Process for producing a water-soluble cellulose derivative having a reduced content of water-insoluble particles
US-2017355782-A1 · Dec 14, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08B13/00?
- CPC C08B13/00 is the Cooperative Patent Classification code for “Preparation of cellulose ether-esters.”
- How many patents are filed under CPC C08B13/00 (Preparation of cellulose ether-esters)?
- Our database includes 127 publications tagged with this CPC code.
- Is patent activity under CPC C08B13/00 growing?
- Publication counts under this code: 3 in 2024 vs 8 in 2025 (latest complete years).