Precast concrete column with embedded recycled component and construction method therefor
US-2026078583-A1 · Mar 19, 2026 · US
the materials being steel and concrete (concrete with internal reinforcements or tensioning members E04C3/20)
the materials being steel and concrete (concrete with internal reinforcements or tensioning members E04C3/20) · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E04C3/293 |
| Official title | the materials being steel and concrete (concrete with internal reinforcements or tensioning members E04C3/20) |
| Display label | the materials being steel and concrete (concrete with internal reinforcements or tensioning members E04C3/20) |
| Total patents | 34 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pipe support systems and methods
US-12540636-B2 · Feb 3, 2026 · US
Pipe support systems and methods
US-2025305528-A1 · Oct 2, 2025 · US
Composite structural element, a structure including the composite structural element, and a method of forming the composite structural element
US-12291867-B1 · May 6, 2025 · US
Function-recoverable prefabricated seismic shear wall structure
US-12044034-B2 · Jul 23, 2024 · US
Reinforced structure for column and beam frame
US-11746521-B2 · Sep 5, 2023 · US
Serrated beam
US-11725386-B2 · Aug 15, 2023 · US
Method for calculating bending moment resistance of internal unbonded post-tensioned composite beam with corrugated steel webs (csws) and double-concrete-filled steel tube (cfst) lower flange
US-2023222260-A1 · Jul 13, 2023 · US
Prefabricated concrete beam-column node and construction method therefor
US-11686084-B2 · Jun 27, 2023 · US
Reinforced structure for column and beam frame
US-2022403642-A1 · Dec 22, 2022 · US
Function-Recoverable Prefabricated Seismic Shear Wall Structure
US-2022389708-A1 · Dec 8, 2022 · US
Prefabricated concrete beam-column node and construction method therefor
US-2022349171-A1 · Nov 3, 2022 · US
Reinforced concrete coupling beam confined by discontinuous steel plates
US-2022205243-A1 · Jun 30, 2022 · US
Hollow composite beam using dual-web and construction method thereof
US-11326345-B2 · May 10, 2022 · US
Connector assembly for wall panel
US-10995510-B2 · May 4, 2021 · US
Steel-framed concrete beam and method for constructing steel-framed concrete beam
US-10988928-B2 · Apr 27, 2021 · US
Hollow composite beam using dual-web and construction method thereof
US-2020165824-A1 · May 28, 2020 · US
Connector assembly for wall panel
US-2020095794-A1 · Mar 26, 2020 · US
Steel form
US-2019376283-A1 · Dec 12, 2019 · US
Steel-framed concrete beam and method for constructing steel-framed concrete beam
US-2019376289-A1 · Dec 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC E04C3/293?
- CPC E04C3/293 is the Cooperative Patent Classification code for “the materials being steel and concrete (concrete with internal reinforcements or tensioning members E04C3/20).”
- How many patents are filed under CPC E04C3/293 (the materials being steel and concrete (concrete with internal reinforcements or tensioning members E04C3/20))?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC E04C3/293 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).