Hollow core door with enhanced acoustic performance
US-2026078632-A1 · Mar 19, 2026 · US
Flush doors, i.e. with completely flat surface (E06B3/02, {E06B3/7003 and E06B3/7015} take precedence) · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E06B3/82 |
| Official title | Flush doors, i.e. with completely flat surface (E06B3/02, {E06B3/7003 and E06B3/7015} take precedence) |
| Display label | Flush doors, i.e. with completely flat surface (E06B3/02, {E06B3/7003 and E06B3/7015} take precedence) |
| Total patents | 20 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 3 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 4 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2026078632-A1 · Mar 19, 2026 · US
US-12390010-B2 · Aug 19, 2025 · US
US-2025185878-A1 · Jun 12, 2025 · US
US-12279738-B2 · Apr 22, 2025 · US
US-12234683-B2 · Feb 25, 2025 · US
US-12171334-B2 · Dec 24, 2024 · US
US-2024401397-A1 · Dec 5, 2024 · US
US-12091908-B2 · Sep 17, 2024 · US
US-2024229546-A9 · Jul 11, 2024 · US
US-2024133231-A1 · Apr 25, 2024 · US
US-2023232979-A1 · Jul 27, 2023 · US
US-2023081091-A1 · Mar 16, 2023 · US
US-2022354340-A1 · Nov 10, 2022 · US
US-2021131171-A1 · May 6, 2021 · US
US-10711513-B2 · Jul 14, 2020 · US
US-10099540-B2 · Oct 16, 2018 · US
US-2018128037-A1 · May 10, 2018 · US
US-9920569-B2 · Mar 20, 2018 · US
US-9650230-B2 · May 16, 2017 · US
US-2016340964-A1 · Nov 24, 2016 · US