Hydroforming of porthole extrusion with non-equiangular seams
US-11052445-B2 · Jul 6, 2021 · US
Extruding metal; Impact extrusion
Extruding metal; Impact extrusion · 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 | B21C23/00 |
| Official title | Extruding metal; Impact extrusion |
| Display label | Extruding metal; Impact extrusion |
| Total patents | 74 |
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 | 17 |
| 2016 | 8 |
| 2017 | 11 |
| 2018 | 7 |
| 2019 | 10 |
| 2020 | 4 |
| 2021 | 7 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aluminum alloy pipe with superior corrosion resistance and processability, and method for manufacturing same
US-10889881-B2 · Jan 12, 2021 · US
Magnetically throttled liquefier assembly
US-10888908-B2 · Jan 12, 2021 · US
Extrusion of metal material using a dummy block having a curved surface
US-2020376529-A1 · Dec 3, 2020 · US
Architectural manufactures, apparatus and methods using additive manufacturing techniques
US-10814369-B2 · Oct 27, 2020 · US
Stock shape for downhole tool component, downhole tool component, and downhole tool
US-10738561-B2 · Aug 11, 2020 · US
A method for forming curved lengths of extruded profiles/sections in metal alloys
US-2020206794-A1 · Jul 2, 2020 · US
Vertical bundle air-cooled heat exchnager, method of manufacturing the same, and power generation plant implementing the same
US-2019283191-A1 · Sep 19, 2019 · US
Method and device for producing a prismatic battery cell container
US-2019252647-A1 · Aug 15, 2019 · US
Method of manufacturing ni-based super heat resistant alloy extruded material, and ni-based super heat resistant alloy extruded material
US-2019232349-A1 · Aug 1, 2019 · US
Hydroforming of porthole extrusion with non-equiangular seams
US-2019232354-A1 · Aug 1, 2019 · US
Vertical bundle air-cooled heat exchanger, method of manufacturing the same, and power generation plant implementing the same
US-10343240-B2 · Jul 9, 2019 · US
Rotary extrusion producing method for producing inner ring rib with large aspect ratio formed of hollow billet
US-10265746-B2 · Apr 23, 2019 · US
Magnesium-zinc-strontium alloys for medical implants and devices
US-10246763-B2 · Apr 2, 2019 · US
Cargo bed support assembly for a truck
US-10226799-B2 · Mar 12, 2019 · US
Magnetically throttled liquefier assembly
US-2019015884-A1 · Jan 17, 2019 · US
Stock shape for downhole tool component, downhole tool component, and downhole tool
US-2019017346-A1 · Jan 17, 2019 · US
Extruded cylinder liner
US-10066577-B2 · Sep 4, 2018 · US
Magnesium alloy member and production method therefor
US-9920403-B2 · Mar 20, 2018 · US
Aluminum alloy pipe with superior corrosion resistance and processability, and method for manufacturing same
US-2018073119-A1 · Mar 15, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21C23/00?
- CPC B21C23/00 is the Cooperative Patent Classification code for “Extruding metal; Impact extrusion.”
- How many patents are filed under CPC B21C23/00 (Extruding metal; Impact extrusion)?
- Our database includes 74 publications tagged with this CPC code.
- Is patent activity under CPC B21C23/00 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).