Polyurethane elastomers
US-10501571-B2 · Dec 10, 2019 · US
Dicarboxylic acids, esters of polycarboxylic acids containing two carboxylic acid groups
Dicarboxylic acids, esters of polycarboxylic acids containing two carboxylic acid groups · 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 | C08G18/341 |
| Official title | {Dicarboxylic acids, esters of polycarboxylic acids containing two carboxylic acid groups} |
| Display label | Dicarboxylic acids, esters of polycarboxylic acids containing two carboxylic acid groups |
| Total patents | 153 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 17 |
| 2017 | 17 |
| 2018 | 7 |
| 2019 | 14 |
| 2020 | 20 |
| 2021 | 13 |
| 2022 | 13 |
| 2023 | 19 |
| 2024 | 17 |
| 2025 | 6 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Two part sole structures and uses thereof
US-2019365028-A1 · Dec 5, 2019 · US
Aging-resistant polyurethane seal
US-10370480-B2 · Aug 6, 2019 · US
Polyamide foams which inhibit the spread of fires for filling cavities in mining
US-2019211137-A1 · Jul 11, 2019 · US
In-situ foaming system for forming flame-retardant polyurethane foam in situ
US-2019194413-A1 · Jun 27, 2019 · US
In-situ foaming system for forming flame-retardant polyurethane foam in situ
US-10280275-B2 · May 7, 2019 · US
Radiation curable coating composition based on chain-extended and cross-linked polyurethanes
US-2019112500-A1 · Apr 18, 2019 · US
Polymer containing silane groups
US-10246546-B2 · Apr 2, 2019 · US
Polyurethane resin
US-10227468-B2 · Mar 12, 2019 · US
Back sheet, method of manufacturing the same, solar cell module using the same and method of manufacturing solar cell
US-10224445-B2 · Mar 5, 2019 · US
One component polyurethane dispersion for vinyl windows and other substrates
US-2019040180-A1 · Feb 7, 2019 · US
Polyamide-imide, method for preparing same, and polyamide-imide film using same
US-2019016849-A1 · Jan 17, 2019 · US
Delayed action gelling catalyst compositions and methods for making polyurethane polymers
US-2019016844-A1 · Jan 17, 2019 · US
Polyurethanes, Articles and Coatings Prepared Therefrom and Methods of Making the Same
US-2018282470-A1 · Oct 4, 2018 · US
Delayed action gelling catalyst compositions and methods for making polyurethane polymers
US-10081700-B2 · Sep 25, 2018 · US
Vinyl functionalized urethane resins for powder coating compositions
US-10072179-B2 · Sep 11, 2018 · US
Two-component composition
US-2018251590-A1 · Sep 6, 2018 · US
Polyurethanes, articles and coatings prepared therefrom and methods of making the same
US-9951173-B2 · Apr 24, 2018 · US
Polyol premix composition for rigid polyurethane foams
US-2018105634-A1 · Apr 19, 2018 · US
Polyurethanes, Articles and Coatings Prepared Therefrom and Methods of Making the Same
US-2018051123-A1 · Feb 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G18/341?
- CPC C08G18/341 is the Cooperative Patent Classification code for “Dicarboxylic acids, esters of polycarboxylic acids containing two carboxylic acid groups.”
- How many patents are filed under CPC C08G18/341 (Dicarboxylic acids, esters of polycarboxylic acids containing two carboxylic acid groups)?
- Our database includes 153 publications tagged with this CPC code.
- Is patent activity under CPC C08G18/341 growing?
- Publication counts under this code: 17 in 2024 vs 6 in 2025 (latest complete years).