Fenestration panels and systems
US-2025376890-A1 · Dec 11, 2025 · US
This page is not indexed by search engines while we improve data quality.
of glass or other transparent material {(panels made of glass bricks E04C2/546)}
of glass or other transparent material {(panels made of glass bricks E04C2/546)} · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E04C1/42 |
| Official title | of glass or other transparent material {(panels made of glass bricks E04C2/546)} |
| Display label | of glass or other transparent material {(panels made of glass bricks E04C2/546)} |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for manufacturing cast regolith building units for radiation, thermal and micrometeoroid protection on the moon
US-2025376839-A1 · Dec 11, 2025 · US
Cellular glass passive fire suppression system
US-2024279926-A1 · Aug 22, 2024 · US
Visible light-catalyzed translucent concrete, and preparation method and use thereof
US-2023416145-A1 · Dec 28, 2023 · US
Light Transmitting Building Blocks
US-2023313529-A1 · Oct 5, 2023 · US
Daylighting illumination system
US-11209142-B2 · Dec 28, 2021 · US
Daylighting device, molding die, and method of manufacturing daylighting film
US-10882223-B2 · Jan 5, 2021 · US
Energy-saving lighting masonry module
US-2020399897-A1 · Dec 24, 2020 · US
Daylighting illumination system
US-2020378572-A1 · Dec 3, 2020 · US
Daylighting panel
US-10794557-B2 · Oct 6, 2020 · US
Processed slab with embedded optical elements
US-10725220-B2 · Jul 28, 2020 · US
Daylighting illumination system
US-10718479-B2 · Jul 21, 2020 · US
Daylighting device, molding die, and method of manufacturing daylighting film
US-2020180194-A1 · Jun 11, 2020 · US
Processed slab with embedded optical elements
US-2019346610-A1 · Nov 14, 2019 · US
Daylighting illumination system
US-2019285237-A1 · Sep 19, 2019 · US
Daylighting panel
US-2019285238-A1 · Sep 19, 2019 · US
Low-emissivity coating and functional construction material for window/door comprising low-emissivity coating
US-10415300-B2 · Sep 17, 2019 · US
Processed slab with embedded optical elements
US-10241252-B1 · Mar 26, 2019 · US
Low-emissivity coating and functional construction material for window/door comprising low-emissivity coating
US-2017159349-A1 · Jun 8, 2017 · US
Infrared-reflective film
US-9551860-B2 · Jan 24, 2017 · US