Fenestration panels and systems
US-2025376890-A1 · Dec 11, 2025 · US
Hollow multi-walled panels with integrated webs · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E04C2/543 |
| Official title | {Hollow multi-walled panels with integrated webs} |
| Display label | Hollow multi-walled panels with integrated webs |
| Total patents | 8 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025376890-A1 · Dec 11, 2025 · US
US-11041307-B2 · Jun 22, 2021 · US
US-2020095766-A1 · Mar 26, 2020 · US
US-10272654-B2 · Apr 30, 2019 · US
US-2018355613-A1 · Dec 13, 2018 · US
US-10011991-B2 · Jul 3, 2018 · US
US-9963879-B2 · May 8, 2018 · US
US-2016102196-A1 · Apr 14, 2016 · US