Extruder screw having paths within the screw, extruder, and extrusion method
US-11813785-B2 · Nov 14, 2023 · US
with screw and additionally other mixing elements on the same shaft, e.g. paddles, discs, bearings, rotor blades of the Banbury type
with screw and additionally other mixing elements on the same shaft, e.g. paddles, discs, bearings, rotor blades of the Banbury type · 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 | B29B7/421 |
| Official title | {with screw and additionally other mixing elements on the same shaft, e.g. paddles, discs, bearings, rotor blades of the Banbury type} |
| Display label | with screw and additionally other mixing elements on the same shaft, e.g. paddles, discs, bearings, rotor blades of the Banbury type |
| Total patents | 64 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 8 |
| 2017 | 11 |
| 2018 | 5 |
| 2019 | 8 |
| 2020 | 5 |
| 2021 | 5 |
| 2022 | 9 |
| 2023 | 3 |
| 2024 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of producing powder coating material
US-11708496-B2 · Jul 25, 2023 · US
Shearing part
US-11639016-B2 · May 2, 2023 · US
Thermal decomposition treatment apparatus and thermal decomposition treatment method
US-2022281140-A1 · Sep 8, 2022 · US
Extruder screw passages, extruder and extrusion method
US-11400633-B2 · Aug 2, 2022 · US
Kneading disc having band portion with bent part, screw element and extruder
US-11376760-B2 · Jul 5, 2022 · US
Filament adhesive dispenser system
US-2022134652-A1 · May 5, 2022 · US
Filament adhesive dispenser
US-2022118473-A1 · Apr 21, 2022 · US
Torpedo for extruder
US-11305460-B2 · Apr 19, 2022 · US
Extruder screw with alternately-arranged conveyance portions and extruders and extrusion methods using the extruder screw
US-11229889-B2 · Jan 25, 2022 · US
Extruder screw including conveyance portions and paths within the conveyance portions, extruder, and extrusion method
US-11230033-B2 · Jan 25, 2022 · US
Extruder screw having paths within the screw, extruder, and extrusion method
US-11220022-B2 · Jan 11, 2022 · US
Method of kneading and kneaded material
US-2021362374-A1 · Nov 25, 2021 · US
Extruder screw having paths within the screw, extruder, and extrusion method
US-2021354362-A1 · Nov 18, 2021 · US
Extruder screw having paths within the screw, extruder, and extrusion method
US-11110638-B2 · Sep 7, 2021 · US
Extruder
US-11104053-B2 · Aug 31, 2021 · US
Device and method for dispersing solids, liquids and gases in an extruder
US-11045977-B2 · Jun 29, 2021 · US
Method of producing powder coating material
US-2020325346-A1 · Oct 15, 2020 · US
Shearing part
US-2020298458-A1 · Sep 24, 2020 · US
Screw for injection molding machine, injection molding machine, and injection molding method
US-10766178-B2 · Sep 8, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29B7/421?
- CPC B29B7/421 is the Cooperative Patent Classification code for “with screw and additionally other mixing elements on the same shaft, e.g. paddles, discs, bearings, rotor blades of the Banbury type.”
- How many patents are filed under CPC B29B7/421 (with screw and additionally other mixing elements on the same shaft, e.g. paddles, discs, bearings, rotor blades of the Banbury type)?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC B29B7/421 growing?
- Publication counts under this code: 3 in 2023 vs 4 in 2024 (latest complete years).