Method for depolymerising polyester
US-2024052131-A1 · Feb 15, 2024 · US
containing carboxylic acid groups, their anhydrides or esters
containing carboxylic acid groups, their anhydrides or 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 | C08J11/26 |
| Official title | containing carboxylic acid groups, their anhydrides or esters |
| Display label | containing carboxylic acid groups, their anhydrides or esters |
| Total patents | 144 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 25 |
| 2021 | 9 |
| 2022 | 17 |
| 2023 | 20 |
| 2024 | 27 |
| 2025 | 25 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compounds for solubilizing polymers
US-2022411359-A1 · Dec 29, 2022 · US
Recovery and reuse of acid digested amine/epoxy-based composite matrices
US-2022363863-A1 · Nov 17, 2022 · US
Chemical recycling of polyethylene terephthalate by microwave irradiation
US-11479651-B2 · Oct 25, 2022 · US
Recycled polymer compositions and methods thereof
US-2022289916-A1 · Sep 15, 2022 · US
Method for separating and recycling a waste polyester-cotton textile by means of a hydrothermal reaction catalyzed by an organic acid
US-11396114-B2 · Jul 26, 2022 · US
Media recycling and sanitization
US-2022169825-A1 · Jun 2, 2022 · US
Polyester recycling process with pre-reaction purification
US-2022169809-A1 · Jun 2, 2022 · US
Upcycling process for processing silicone wastes
US-2022119617-A1 · Apr 21, 2022 · US
Process for regenerating a monolithic, macro-structural, inter-penetrating elastomer network morphology from ground tire rubber particles
US-11286376-B2 · Mar 29, 2022 · US
Process for recycling silicones
US-11286366-B2 · Mar 29, 2022 · US
Preparation method of renewable epoxy asphalt material and regeneration process thereof
US-2022089832-A1 · Mar 24, 2022 · US
Pet regranulate having high intrinsic viscosity and method for the production thereof
US-11254797-B2 · Feb 22, 2022 · US
Recovery of fibers from fiber reinforced polymers with Lewis bases
US-11208345-B2 · Dec 28, 2021 · US
Synthesis of functionalized polymers through devulcanization from waste containing elastomers
US-2021388174-A1 · Dec 16, 2021 · US
Lewis base-mediated recovery of fibers from fiber reinforced polymers
US-11167451-B2 · Nov 9, 2021 · US
Degradable polymers and monomers therefor
US-2021317058-A1 · Oct 14, 2021 · US
Physical reutilization of siliconized sheets
US-2021301099-A1 · Sep 30, 2021 · US
Urethane decomposing method and urethane decomposing agent
US-10988595-B2 · Apr 27, 2021 · US
Inter-penetrating elastomer network derived from ground tire rubber particles
US-2021115230-A1 · Apr 22, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08J11/26?
- CPC C08J11/26 is the Cooperative Patent Classification code for “containing carboxylic acid groups, their anhydrides or esters.”
- How many patents are filed under CPC C08J11/26 (containing carboxylic acid groups, their anhydrides or esters)?
- Our database includes 144 publications tagged with this CPC code.
- Is patent activity under CPC C08J11/26 growing?
- Publication counts under this code: 27 in 2024 vs 25 in 2025 (latest complete years).