Coated roofing materials
US-2025066265-A1 · Feb 27, 2025 · US
Polystyrene
Polystyrene · 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 | C04B41/4876 |
| Official title | {Polystyrene} |
| Display label | Polystyrene |
| Total patents | 25 |
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 | 2 |
| 2016 | 4 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 9 |
| 2021 | 2 |
| 2022 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Coated roofing materials
US-12172935-B2 · Dec 24, 2024 · US
Exterior sheathing panel with integrated air/water barrier membrane
US-11267227-B2 · Mar 8, 2022 · US
Polymer and porous inorganic composite article and methods thereof
US-2021198158-A1 · Jul 1, 2021 · US
Exterior sheathing panel with integrated air/water barrier membrane
US-10906271-B2 · Feb 2, 2021 · US
Waterborne wet look coating composition
US-10851025-B2 · Dec 1, 2020 · US
Coated roofing materials
US-2020354282-A1 · Nov 12, 2020 · US
Hydrophobic finish compositions with extended flow time retention and building products made thereof
US-10815149-B2 · Oct 27, 2020 · US
Exterior sheathing panel with integrated air/water barrier membrane
US-2020331236-A1 · Oct 22, 2020 · US
Pulverulent primer composition
US-10689294-B2 · Jun 23, 2020 · US
Exterior sheathing panel with integrated air/water barrier membrane
US-2020171797-A1 · Jun 4, 2020 · US
Exterior sheathing panel with integrated air/water barrier membrane
US-2020147930-A1 · May 14, 2020 · US
Method of fabricating green desiccant wheel
US-10570065-B1 · Feb 25, 2020 · US
Exterior sheathing panel with integrated air/water barrier membrane
US-10562271-B2 · Feb 18, 2020 · US
Aqueous polymer composition
US-2019276676-A1 · Sep 12, 2019 · US
Hydrophobic finish compositions with extended flow time retention and building products made thereof
US-10399898-B2 · Sep 3, 2019 · US
Hydrophobic finish compositions with extended flow time retention and building products made thereof
US-2019055161-A1 · Feb 21, 2019 · US
Hydrophobic finish compositions with extended flow time retention and building products made thereof
US-10155692-B2 · Dec 18, 2018 · US
Waterborne wet look coating composition
US-2018002241-A1 · Jan 4, 2018 · US
Alkyl ester polystyrene blends for use in concrete
US-9499444-B2 · Nov 22, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B41/4876?
- CPC C04B41/4876 is the Cooperative Patent Classification code for “Polystyrene.”
- How many patents are filed under CPC C04B41/4876 (Polystyrene)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC C04B41/4876 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).