Screw elements for extrusion apparatus and methods of manufacturing a honeycomb body
US-12076903-B2 · Sep 3, 2024 · US
Twin screw extruders, e.g. double shaft extruders
Twin screw extruders, e.g. double shaft extruders · 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 | B28B3/224 |
| Official title | {Twin screw extruders, e.g. double shaft extruders} |
| Display label | Twin screw extruders, e.g. double shaft extruders |
| Total patents | 30 |
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 | 4 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Precision bead forming 3D print head for cementitious materials
US-11752663-B2 · Sep 12, 2023 · US
Kneading elements for extrusion apparatus and methods of manufacturing a honeycomb body
US-11571832-B2 · Feb 7, 2023 · US
High isostatic strength honeycomb structures and extrusion dies therefor
US-11312662-B2 · Apr 26, 2022 · US
Precision bead forming 3d print head for cementitious materials
US-2022097255-A1 · Mar 31, 2022 · US
Continuous methods of making fiber reinforced concrete panels
US-11224990-B2 · Jan 18, 2022 · US
Apparatus and methods of ceramic pre-cursor batch rheology control
US-11220021-B2 · Jan 11, 2022 · US
High isostatic strength honeycomb structures and extrusion dies therefor
US-2021238104-A1 · Aug 5, 2021 · US
Rotating member, kneading machine member, and kneading machine using same, bearing and bearing unit using same
US-2021187452-A1 · Jun 24, 2021 · US
Extrusion apparatus for ceramic structures and honeycomb filters
US-2021162625-A1 · Jun 3, 2021 · US
Kneading elements for extrusion apparatus and methods of manufacturing a honeycomb body
US-2020307019-A1 · Oct 1, 2020 · US
Screw elements for extrusion apparatus and methods of manufacturing a honeycomb body
US-2020276745-A1 · Sep 3, 2020 · US
Method for producing fiber reinforced cementitious slurry using a multi-state continuous mixer
US-10646837-B2 · May 12, 2020 · US
A method for producing fiber reinforced cementitious slurry using a multi-stage continuous mixer
US-2019217259-A1 · Jul 18, 2019 · US
Extruder, operational method thereof, and method of producing honeycomb green body using said extruder
US-2019184598-A1 · Jun 20, 2019 · US
Apparatus and methods of ceramic pre-cursor batch rheology control
US-2019176362-A1 · Jun 13, 2019 · US
Method for producing fiber reinforced cementitious slurry using a multi-stage continuous mixer
US-10272399-B2 · Apr 30, 2019 · US
Extrusion forming apparatus and extrusion forming method
US-10259139-B2 · Apr 16, 2019 · US
Methods of making porous ceramic articles
US-2018327326-A1 · Nov 15, 2018 · US
Method for producing fiber reinforced cementitious slurry using a multi-stage continuous mixer
US-2018036693-A1 · Feb 8, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B28B3/224?
- CPC B28B3/224 is the Cooperative Patent Classification code for “Twin screw extruders, e.g. double shaft extruders.”
- How many patents are filed under CPC B28B3/224 (Twin screw extruders, e.g. double shaft extruders)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC B28B3/224 growing?
- Publication counts under this code: 2 in 2023 vs 1 in 2024 (latest complete years).