Stainless steel pipe and method for manufacturing same
US-12359752-B2 · Jul 15, 2025 · US
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Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (straightening of well casings in situ E21B; {straightening rails or rail joints E01B31/08})
Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (straightening of well casings in situ E21B; {straightening rails or rail joints E01B31/08}) · 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 | B21D3/00 |
| Official title | Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (straightening of well casings in situ E21B; {straightening rails or rail joints E01B31/08}) |
| Display label | Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (straightening of well casings in situ E21B; {straightening rails or rail joints E01B31/08}) |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Anti-Collapse Oil Casing with High Strength and Manufacturing Method Therefor
US-2023211396-A1 · Jul 6, 2023 · US
Stainless steel pipe and method for manufacturing same
US-2023097339-A1 · Mar 30, 2023 · US
Jig for straightening and bending a malleable tool
US-11612404-B2 · Mar 28, 2023 · US
Robot for straightening double thin-wall section pipe with undesirably shaped cavities
US-11465188-B2 · Oct 11, 2022 · US
Adjustable internal support restraint device for roundness control of cabin component
US-11370564-B2 · Jun 28, 2022 · US
Pin reforming tool
US-11198165-B2 · Dec 14, 2021 · US
Adjustable internal support restraint device for roundness control of cabin component
US-2021362880-A1 · Nov 25, 2021 · US
Method for flame straightening and burner assembly for this purpose
US-10955133-B2 · Mar 23, 2021 · US
Jig for straightening and bending a malleable tool
US-2021045762-A1 · Feb 18, 2021 · US
Robot for straightening double thin-wall section pipe with multi-cavity special-shaped
US-2020406326-A1 · Dec 31, 2020 · US
Method for automated straightening of welded assemblies
US-10725447-B2 · Jul 28, 2020 · US
Wheel end surface detection and correction device
US-2020147663-A1 · May 14, 2020 · US
Pin reforming tool
US-2019283098-A1 · Sep 19, 2019 · US
Folding device for forming a corrugation in a metal sheet and method for using a folding device
US-10335844-B2 · Jul 2, 2019 · US
Method for Automated Straightening of Welded Assemblies
US-2019163162-A1 · May 30, 2019 · US
Production method and production facility of metal pipe
US-9938602-B2 · Apr 10, 2018 · US
Apparatus for refurbishing a gas turbine nozzle
US-9669495-B2 · Jun 6, 2017 · US
Folding device for forming a corrugation in a metal sheet and method for using a folding device
US-2017066027-A1 · Mar 9, 2017 · US
Crimping tool
US-9532824-B2 · Jan 3, 2017 · US