Annular cooling device for large-scale cylindrical shell
US-11577289-B2 · Feb 14, 2023 · US
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Extending closed shapes of metal bands by rolling (manufacture of circular shapes, e.g. wheel rims, B21H1/06)
Extending closed shapes of metal bands by rolling (manufacture of circular shapes, e.g. wheel rims, B21H1/06) · 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 | B21B5/00 |
| Official title | Extending closed shapes of metal bands by rolling (manufacture of circular shapes, e.g. wheel rims, B21H1/06) |
| Display label | Extending closed shapes of metal bands by rolling (manufacture of circular shapes, e.g. wheel rims, B21H1/06) |
| 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 |
|---|---|
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 5 |
| 2021 | 5 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ring molded article manufacturing method and ring material
US-11208910-B2 · Dec 28, 2021 · US
Method for manufacturing ring-rolled product
US-11135642-B2 · Oct 5, 2021 · US
Method for manufacturing ring-rolled product
US-11077481-B2 · Aug 3, 2021 · US
Annular Cooling Device for Large-Scale Cylindrical Shell
US-2021213502-A1 · Jul 15, 2021 · US
CVT ring member and method for manufacturing the same
US-10948046-B2 · Mar 16, 2021 · US
Method for manufacturing ring-rolled product
US-2020306817-A1 · Oct 1, 2020 · US
Method for manufacturing ring-rolled product
US-2020306818-A1 · Oct 1, 2020 · US
Ring molded article manufacturing method and ring material
US-2020088057-A1 · Mar 19, 2020 · US
Method for manufacturing ring-shaped member and manufacturing apparatus for same
US-10583475-B2 · Mar 10, 2020 · US
Method of cooling main roll for ring rolling and method of manufacturing ring rolled body
US-2020061686-A1 · Feb 27, 2020 · US
Ring molded article manufacturing method and ring material
US-10519795-B2 · Dec 31, 2019 · US
Low cost parabolic cylindrical trough for concentrated solar power
US-10488079-B2 · Nov 26, 2019 · US
Manufacturing method of precision machine tool bearing with high precision stability
US-10228022-B2 · Mar 12, 2019 · US
Ring rolling process and apparatus for ring rolling
US-10189074-B2 · Jan 29, 2019 · US
Forming machine and method for control of a forming machine
US-10065234-B2 · Sep 4, 2018 · US
Manufacturing method of precision machine tool bearing with high precision stability
US-2018051751-A1 · Feb 22, 2018 · US
Ring rolling process and apparatus for ring rolling
US-2018021842-A1 · Jan 25, 2018 · US
Ring molded article manufacturing method
US-2017297080-A1 · Oct 19, 2017 · US
Ring molded article manufacturing method and ring material
US-2017284217-A1 · Oct 5, 2017 · US