Bending mandril comprising ultra high molecular weight material, related bending machines, systems, and methods
US-12479019-B2 · Nov 25, 2025 · US
the mandrel being rigid
the mandrel being rigid · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B21D9/04 |
| Official title | the mandrel being rigid |
| Display label | the mandrel being rigid |
| Total patents | 36 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 6 |
| 2022 | 8 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Bending mandril comprising ultra high molecular weight material, related bending machines, systems, and methods
US-2025303457-A1 · Oct 2, 2025 · US
Bending mandril comprising ultra high molecular weight material, related bending machines, systems, and methods
US-12350730-B1 · Jul 8, 2025 · US
Bending mandril comprising ultra high molecular weight material, related bending machines, systems, and methods
US-2025214128-A1 · Jul 3, 2025 · US
Apparatus and method for manufacturing heat exchanger
US-2024082904-A1 · Mar 14, 2024 · US
Shaping method and shaping device for double pipe
US-11911819-B2 · Feb 27, 2024 · US
Shaping method and shaping device for double pipe
US-2023264247-A1 · Aug 24, 2023 · US
Manufacturing device for bent pipe and method of manufacturing bent pipe
US-11534814-B2 · Dec 27, 2022 · US
Manufacturing device for bent pipe and method of manufacturing bent pipe
US-11458521-B2 · Oct 4, 2022 · US
Tube bending mandrel and system using the same
US-11440072-B2 · Sep 13, 2022 · US
Device for manufacturing bent pipe and method for manufacturing bent pipe
US-11370011-B2 · Jun 28, 2022 · US
Wear resistant tubular members and systems and methods for producing the same
US-2022168794-A1 · Jun 2, 2022 · US
Manufacturing device for bent pipe and method of manufacturing bent pipe
US-11344940-B2 · May 31, 2022 · US
Manufacturing device for bent pipe and method of manufacturing bent pipe
US-2022152681-A1 · May 19, 2022 · US
Wear resistant tubular members and systems and methods for producing the same
US-11285524-B2 · Mar 29, 2022 · US
Wear resistant tubular members and systems and methods for producing the same
US-2021394249-A1 · Dec 23, 2021 · US
Method for producing pipe material
US-11167335-B2 · Nov 9, 2021 · US
Manufacturing device for bent pipe and method of manufacturing bent pipe
US-2021316351-A1 · Oct 14, 2021 · US
Manufacturing device for bent pipe and method of manufacturing bent pipe
US-2021220894-A1 · Jul 22, 2021 · US
Device for manufacturing bent pipe and method for manufacturing bent pipe
US-2021187574-A1 · Jun 24, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21D9/04?
- CPC B21D9/04 is the Cooperative Patent Classification code for “the mandrel being rigid.”
- How many patents are filed under CPC B21D9/04 (the mandrel being rigid)?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC B21D9/04 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).