Two-component curable composition for manufacturing thermoplastic polyurethane resin, thermoplastic polyurethane resin, and fiber-reinforced resin
US-11891511-B2 · Feb 6, 2024 · US
containing two or more aromatic rings
containing two or more aromatic rings · 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 | C08G18/7657 |
| Official title | {containing two or more aromatic rings} |
| Display label | containing two or more aromatic rings |
| Total patents | 292 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 40 |
| 2017 | 25 |
| 2018 | 32 |
| 2019 | 28 |
| 2020 | 26 |
| 2021 | 45 |
| 2022 | 34 |
| 2023 | 13 |
| 2024 | 17 |
| 2025 | 13 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flame-retardant polyurethane materials
US-2017226273-A1 · Aug 10, 2017 · US
Polyisocyanate composition for producing flexible polyurethane foam, and flexible polyurethane foam production method using same
US-2017210847-A1 · Jul 27, 2017 · US
A proppant
US-2016376496-A1 · Dec 29, 2016 · US
Polyurethane grout compositions
US-9527949-B2 · Dec 27, 2016 · US
Polyurethane and polyisocyanurate rigid foams for roofing insulation
US-9522973-B2 · Dec 20, 2016 · US
Moisture indicating hydrophilic polyurethane
US-9504421-B2 · Nov 29, 2016 · US
Method for producing a thermoplastic copolymers from polycaprolactam and thermoplastic polyurethane
US-2016340465-A1 · Nov 24, 2016 · US
Aqueous polyurethane dispersion
US-2016333155-A1 · Nov 17, 2016 · US
Vehicle-interior material and production method therefor
US-2016318285-A1 · Nov 3, 2016 · US
Use of pentaethylenehexamine in the production of polyurethane systems
US-2016304685-A1 · Oct 20, 2016 · US
Golf ball cores having foam center and thermoset outer layers with hardness gradients
US-9468812-B2 · Oct 18, 2016 · US
Moisture-curable polyurethane hot-melt resin composition, adhesive, and article
US-9464155-B2 · Oct 11, 2016 · US
Modified diphenylmethane diisocyanate-based adhesives
US-9453152-B2 · Sep 27, 2016 · US
Two-component lamination adhesive of renewable origin
US-2016272858-A1 · Sep 22, 2016 · US
Syntactic polyurethane elastomers for use in subsea pipeline insulation
US-2016272752-A1 · Sep 22, 2016 · US
Biomass-resource-derived polyurethane, method for producing same, and biomass-resource-derived polyester polyol
US-2016272751-A1 · Sep 22, 2016 · US
Storage Stable Polyol Composition for Polyurethane Elastomers
US-2016264712-A1 · Sep 15, 2016 · US
Viscoelastic foam
US-9441068-B2 · Sep 13, 2016 · US
Isocyanate-terminated prepolymer, the method for preparing the same and the use thereof
US-9434809-B2 · Sep 6, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G18/7657?
- CPC C08G18/7657 is the Cooperative Patent Classification code for “containing two or more aromatic rings.”
- How many patents are filed under CPC C08G18/7657 (containing two or more aromatic rings)?
- Our database includes 292 publications tagged with this CPC code.
- Is patent activity under CPC C08G18/7657 growing?
- Publication counts under this code: 17 in 2024 vs 13 in 2025 (latest complete years).