System for holding back a mandrel rod in a pipe rolling mill, and method for operating said system
US-2025235913-A1 · Jul 24, 2025 · US
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Guides, supports, or abutments for mandrels, e.g. carriages {or steadiers}; Adjusting devices for mandrels
Guides, supports, or abutments for mandrels, e.g. carriages {or steadiers}; Adjusting devices for mandrels · 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 | B21B25/02 |
| Official title | Guides, supports, or abutments for mandrels, e.g. carriages {or steadiers}; Adjusting devices for mandrels |
| Display label | Guides, supports, or abutments for mandrels, e.g. carriages {or steadiers}; Adjusting devices for mandrels |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 3 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Device and method for handling mandrel rods in a tube rolling mill
US-12275047-B2 · Apr 15, 2025 · US
Guide device for guiding a driving bar of a mandrel or for guiding a mandrel in a rolling process of tubular bodies
US-11801541-B2 · Oct 31, 2023 · US
Device and method for handling mandrel rods in a tube rolling mill
US-2023201900-A1 · Jun 29, 2023 · US
Guide device for guiding a driving bar of a mandrel or for guiding a mandrel in a rolling process of tubular bodies
US-2022219213-A1 · Jul 14, 2022 · US
Rolling mill for rolling concave, rod-shaped bodies
US-11154920-B2 · Oct 26, 2021 · US
Rolling mill for rolling hollow or, in all cases, concave rod-shaped bodies
US-2020009625-A1 · Jan 9, 2020 · US
Plug and Method of Manufacturing the Same
US-2018281037-A1 · Oct 4, 2018 · US
Mandrel conveying device for a tube rolling mill
US-10052669-B2 · Aug 21, 2018 · US
Manufacturing method of seamless metal pipe, mandrel mill, and auxiliary tool
US-9884355-B2 · Feb 6, 2018 · US
Multi-roll table ring-rolling mill as well as method for rolling rings in a multi-roll table ring-rolling mill
US-9789523-B2 · Oct 17, 2017 · US
Device and method for rolling of pipe blanks
US-9616476-B2 · Apr 11, 2017 · US
Manufacturing method and manufacturing apparatus of seamless metal pipe
US-9597718-B2 · Mar 21, 2017 · US
Mandrel holder head with release device
US-9446438-B2 · Sep 20, 2016 · US
Process for rolling tubes in a continuous multi-stand rolling mill
US-9283599-B2 · Mar 15, 2016 · US
Mandrel conveying device for a tube rolling mill
US-2016059284-A1 · Mar 3, 2016 · US
Mandrel conveying device for a tube rolling mill
US-9205473-B2 · Dec 8, 2015 · US
Manufacturing method and manufacturing apparatus of seamless metal pipe
US-2015306646-A1 · Oct 29, 2015 · US
Manufacturing method of seamless metal pipe, mandrel mill, and auxiliary tool
US-2015121982-A1 · May 7, 2015 · US