Isocyanate-functionalized organosilanes as adhesion promoters in sealant and primer compositions
US-2024218204-A1 · Jul 4, 2024 · US
Polythioethers
Polythioethers · 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 | C08G18/52 |
| Official title | Polythioethers |
| Display label | Polythioethers |
| Total patents | 65 |
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 | 9 |
| 2017 | 6 |
| 2018 | 2 |
| 2019 | 11 |
| 2020 | 6 |
| 2021 | 7 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polymerizable composition, resin, formed body, optical material, and lens
US-2024117100-A1 · Apr 11, 2024 · US
Actinic radiation-curable urethane/urea-containing aerospace coatings and sealants
US-11898054-B2 · Feb 13, 2024 · US
Polymerizable composition for optical material, molded product, optical material, plastic lens, and laminated plastic lens
US-11807755-B2 · Nov 7, 2023 · US
Polymerizable composition for polythiourethane-based optical material
US-11760721-B2 · Sep 19, 2023 · US
Temporary protective lacquer optical element
US-11697712-B2 · Jul 11, 2023 · US
Sulfur-based functional prepolymers for polyurethanes and polymeric materials
US-2023098612-A1 · Mar 30, 2023 · US
Method for preparing polythiol composition
US-11578038-B2 · Feb 14, 2023 · US
Method for producing resin for optical component, resin for optical component, spectacle lens, and spectacles
US-11479654-B2 · Oct 25, 2022 · US
Reaction mixtures of isocyanates and polyols with extended pot life
US-2022267503-A1 · Aug 25, 2022 · US
Polymerizable composition for optical materials and use thereof
US-2022213256-A1 · Jul 7, 2022 · US
Polymerizable composition for optical members, optical member, and colored optical member
US-2022204685-A1 · Jun 30, 2022 · US
Two component coating compositions
US-2022162375-A1 · May 26, 2022 · US
Optically softening resin composition, method for producing softened product of optically softening resin composition, curable resin composition and cured product of same, and patterned film and method for producing same
US-2022162406-A1 · May 26, 2022 · US
Aromatic polythiol compound for optical material
US-11279673-B2 · Mar 22, 2022 · US
Reaction mixtures of isocyanates and polyols with extended pot life
US-2021277168-A1 · Sep 9, 2021 · US
Sprayable polythioether coatings and sealants
US-11098222-B2 · Aug 24, 2021 · US
Highly hydrophobic antifouling coatings for implantable medical devices
US-11065367-B2 · Jul 20, 2021 · US
Method for preparing polythiol composition
US-2021179552-A1 · Jun 17, 2021 · US
Actinic radiation-curable urethane/urea-containing aerospace coatings and sealants
US-2021071032-A1 · Mar 11, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G18/52?
- CPC C08G18/52 is the Cooperative Patent Classification code for “Polythioethers.”
- How many patents are filed under CPC C08G18/52 (Polythioethers)?
- Our database includes 65 publications tagged with this CPC code.
- Is patent activity under CPC C08G18/52 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).