A connection for timber members
US-2025382787-A1 · Dec 18, 2025 · US
the supporting parts being composed of two or more materials; Composite steel and concrete constructions (of reinforced concrete E04B1/20)
the supporting parts being composed of two or more materials; Composite steel and concrete constructions (of reinforced concrete E04B1/20) · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E04B1/30 |
| Official title | the supporting parts being composed of two or more materials; Composite steel and concrete constructions (of reinforced concrete E04B1/20) |
| Display label | the supporting parts being composed of two or more materials; Composite steel and concrete constructions (of reinforced concrete E04B1/20) |
| Total patents | 52 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 8 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 12 |
| 2022 | 4 |
| 2023 | 7 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Prefabricated reinforced concrete beam-column connecting structure and construction method thereof
US-12234633-B2 · Feb 25, 2025 · US
Prefabricated reinforced concrete beam-column connecting structure and construction method thereof
US-2024159038-A1 · May 16, 2024 · US
Calculation method of ultimate moment resistance and moment-rotation curve for steel beam to concrete-filled steel tube column connections with bidirectional bolts
US-11821806-B2 · Nov 21, 2023 · US
Method for quantitative analysis of cavity zone of the top of concrete-filled steel tube
US-11733212-B2 · Aug 22, 2023 · US
Metal-encapsulated polymeric article
US-11691388-B2 · Jul 4, 2023 · US
Prefabricated concrete beam-column node and construction method therefor
US-11686084-B2 · Jun 27, 2023 · US
Steel reinforced concrete column
US-11661742-B2 · May 30, 2023 · US
System and method for connecting a square concrete-filled steel tubular column to a reinforced concrete footing
US-11639601-B2 · May 2, 2023 · US
Panelized structural system for building construction
US-11629494-B2 · Apr 18, 2023 · US
Prefabricated concrete beam-column node and construction method therefor
US-2022349171-A1 · Nov 3, 2022 · US
Concrete-filled steel tubular column-steel plate concrete ring beam joint and construction method thereof
US-11421414-B2 · Aug 23, 2022 · US
Moment resisting bi-axial beam-to-column joint connection
US-11332920-B2 · May 17, 2022 · US
System and method for connecting a square concrete-filled steel tubular column to a reinforced concrete footing
US-2022042297-A1 · Feb 10, 2022 · US
Concrete-Filled Steel Tubular Column-Steel Plate Concrete Ring Beam Joint and Construction Method Thereof
US-2021340750-A1 · Nov 4, 2021 · US
Double-steel tube concrete beam-column joint with internal fiber reinforced polymer (FRP) bar connectors and assembly method
US-11155989-B1 · Oct 26, 2021 · US
Method for Quantitative Analysis of Cavity Zone of the Top of Concrete-Filled Steel Tube
US-2021310993-A1 · Oct 7, 2021 · US
Steel reinforced concrete column
US-2021230859-A1 · Jul 29, 2021 · US
Fabricated intelligent joint provided with particle damping chambers for energy dissipation and assembly method
US-10961696-B2 · Mar 30, 2021 · US
System and method for connecting a square concrete-filled steel tubular column to a reinforced concrete footing
US-10954662-B1 · Mar 23, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC E04B1/30?
- CPC E04B1/30 is the Cooperative Patent Classification code for “the supporting parts being composed of two or more materials; Composite steel and concrete constructions (of reinforced concrete E04B1/20).”
- How many patents are filed under CPC E04B1/30 (the supporting parts being composed of two or more materials; Composite steel and concrete constructions (of reinforced concrete E04B1/20))?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC E04B1/30 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).