Light-absorbing composition, light-absorbing film, method for producing light-absorbing film, and optical filter
US-2024377565-A1 · Nov 14, 2024 · US
Phenols containing keto groups {, e.g. benzophenones}
Phenols containing keto groups {, e.g. benzophenones} · 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 | C08K5/132 |
| Official title | Phenols containing keto groups {, e.g. benzophenones} |
| Display label | Phenols containing keto groups {, e.g. benzophenones} |
| Total patents | 312 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 16 |
| 2017 | 20 |
| 2018 | 26 |
| 2019 | 19 |
| 2020 | 31 |
| 2021 | 38 |
| 2022 | 43 |
| 2023 | 38 |
| 2024 | 39 |
| 2025 | 24 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ultraviolet absorber and synthetic resin composition
US-10144814-B2 · Dec 4, 2018 · US
Composition for soft mold and soft mold manufactured by using the composition
US-2018298134-A1 · Oct 18, 2018 · US
Curable composition and cured product thereof, method for producing cured product, method for manufacturing optical component, method for manufacturing circuit board, and method for manufacturing electronic component
US-2018291130-A1 · Oct 11, 2018 · US
Polyolefin Pipe
US-2018258255-A1 · Sep 13, 2018 · US
Photo-crosslinkable ethylene-based resin composition
US-2018237620-A1 · Aug 23, 2018 · US
Resin composition for solar cell encapsulant, and solar cell encapsulant and solar cell module using the same
US-10030085-B2 · Jul 24, 2018 · US
Synergistic effects on blending multiple additives in UHMWPE
US-9971267-B2 · May 15, 2018 · US
Curable end-capped silsesquioxane polymer comprising reactive groups
US-9957416-B2 · May 1, 2018 · US
Polymers polymerized from at least four monomers, and compositions and uses thereof
US-9914795-B2 · Mar 13, 2018 · US
Plastic optical member
US-2018059437-A1 · Mar 1, 2018 · US
Polyamide resin composition, method for producing polyamide resin composition, and molded article
US-2018030236-A1 · Feb 1, 2018 · US
Processes for producing molded articles stabilized against ultraviolet light and thermal degradation
US-2017349730-A1 · Dec 7, 2017 · US
Encapsulant film
US-9815924-B2 · Nov 14, 2017 · US
Encapsulant composition for solar cell, solar cell encapsulant layer produced therewith, and solar cell module produced therewith
US-2017253726-A1 · Sep 7, 2017 · US
Ultraviolet absorber and synthetic resin composition
US-2017233551-A1 · Aug 17, 2017 · US
Heat ray shielding film, heat ray shielding laminated transparent base material, vehicle, and building
US-2017232714-A1 · Aug 17, 2017 · US
Encapsulant film
US-9732170-B2 · Aug 15, 2017 · US
Stabilizing compositions for stabilizing materials against ultraviolet light and thermal degradation
US-9725579-B2 · Aug 8, 2017 · US
Curable composition and cured product thereof, method for producing cured product, method for manufacturing optical component, method for manufacturing circuit board, and method for manufacturing electronic component
US-2017183437-A1 · Jun 29, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08K5/132?
- CPC C08K5/132 is the Cooperative Patent Classification code for “Phenols containing keto groups {, e.g. benzophenones}.”
- How many patents are filed under CPC C08K5/132 (Phenols containing keto groups {, e.g. benzophenones})?
- Our database includes 312 publications tagged with this CPC code.
- Is patent activity under CPC C08K5/132 growing?
- Publication counts under this code: 39 in 2024 vs 24 in 2025 (latest complete years).