Hollow shell part manufacturing method
US-2025033105-A1 · Jan 30, 2025 · US
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in press brakes or between rams and anvils or abutments; Pliers with forming dies
in press brakes or between rams and anvils or abutments; Pliers with forming dies · 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 | B21D9/08 |
| Official title | in press brakes or between rams and anvils or abutments; Pliers with forming dies |
| Display label | in press brakes or between rams and anvils or abutments; Pliers with forming dies |
| Total patents | 10 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2018 | 3 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
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
Apparatus and method for forming large-scale thin-walled ring shell by hot-press bending with internal gas pressure
US-11413672-B2 · Aug 16, 2022 · US
Apparatus and method for forming large-scale thin-walled ring shell by hot-press bending with internal gas pressure
US-2021362209-A1 · Nov 25, 2021 · US
Method of forming a closed cross-sectional structure
US-10160031-B2 · Dec 25, 2018 · US
Method of forming a closed cross-sectional structure
US-2018078993-A1 · Mar 22, 2018 · US
Method and apparatus that forms a closed cross-sectional structure
US-9862017-B2 · Jan 9, 2018 · US
Press device with adjustment mechanism
US-2016114381-A1 · Apr 28, 2016 · US
Method and apparatus that forms a closed cross-sectional structure
US-2015165511-A1 · Jun 18, 2015 · US