Throttle grooves and control loop/method to achieve an optimized pressure constant backflush procedure of the screen cavity of a screen changer during backflush
US-2025196422-A1 · Jun 19, 2025 · US
Substantially flat filters mounted at the end of an extruder screw perpendicular to the feed axis
Substantially flat filters mounted at the end of an extruder screw perpendicular to the feed axis · 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 | B29C48/693 |
| Official title | Substantially flat filters mounted at the end of an extruder screw perpendicular to the feed axis |
| Display label | Substantially flat filters mounted at the end of an extruder screw perpendicular to the feed axis |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 2 |
| 2018 | 4 |
| 2019 | 5 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatus for filtering a fluid, in particular a plastic melt having impurities, and a valve arrangement for such a fluid
US-12318712-B2 · Jun 3, 2025 · US
Method for consolidating a bulk molding compound
US-12318987-B2 · Jun 3, 2025 · US
Device for filtering a liquid plastic and corresponding operating method
US-2025073622-A1 · Mar 6, 2025 · US
Method and reprocessing installation for reprocessing film waste material
US-11986977-B2 · May 21, 2024 · US
Filter device
US-2024083087-A1 · Mar 14, 2024 · US
Apparatus for filtering a fluid, in particular a plastic melt having impurities, and a valve arrangement for such a fluid
US-2023356118-A1 · Nov 9, 2023 · US
Plasticizing unit for a shaping machine and method for operating one
US-2022324143-A1 · Oct 13, 2022 · US
Method for Consolidating a Bulk Molding Compound
US-2022258402-A1 · Aug 18, 2022 · US
Gel reduction method
US-11369927-B2 · Jun 28, 2022 · US
Method and reprocessing installation for reprocessing film waste material
US-2022105662-A1 · Apr 7, 2022 · US
2-stage extrusion apparatus and method of extrusion
US-10933572-B2 · Mar 2, 2021 · US
Method and apparatus for consolidating a bulk molding compound
US-2019351599-A1 · Nov 21, 2019 · US
Methods for controlling polymer chain scission
US-10471641-B2 · Nov 12, 2019 · US
Distributive and dispersive mixing devices
US-2019337211-A1 · Nov 7, 2019 · US
Gel reduction method
US-2019143564-A1 · May 16, 2019 · US
Elimination of contaminants in wet natural rubber
US-10227420-B2 · Mar 12, 2019 · US
2-stage extrusion apparatus and method of extrusion
US-2018370110-A1 · Dec 27, 2018 · US
Elimination of contaminants in wet natural rubber
US-2018134814-A1 · May 17, 2018 · US
Straining mechanism and screw extruder including straining mechanism
US-2018133947-A1 · May 17, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C48/693?
- CPC B29C48/693 is the Cooperative Patent Classification code for “Substantially flat filters mounted at the end of an extruder screw perpendicular to the feed axis.”
- How many patents are filed under CPC B29C48/693 (Substantially flat filters mounted at the end of an extruder screw perpendicular to the feed axis)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC B29C48/693 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).