Method and apparatus for forming high strength products
US-12403641-B2 · Sep 2, 2025 · US
extrusion dies
extrusion dies · 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 | B30B11/221 |
| Official title | {extrusion dies} |
| Display label | extrusion dies |
| Total patents | 41 |
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 | 3 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 6 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and apparatus for preparing dry electrode sheet for secondary battery, dry electrode sheet for secondary battery, electrode for secondary battery and secondary battery
US-12199265-B2 · Jan 14, 2025 · US
Single-screw extruder and a method for extrusion
US-12115508-B2 · Oct 15, 2024 · US
Extrusion press
US-2024157422-A1 · May 16, 2024 · US
Method and apparatus for forming high strength products
US-2024083084-A1 · Mar 14, 2024 · US
Multi-chamber pellet die system
US-11897221-B2 · Feb 13, 2024 · US
Method and device for coaxially extruding an extruded product
US-2024042667-A1 · Feb 8, 2024 · US
Method and device for producing an extruded product
US-2024024938-A1 · Jan 25, 2024 · US
Micro-layer tubular extrusion products
US-11833726-B2 · Dec 5, 2023 · US
Method and apparatus for preparing dry electrode sheet for secondary battery, dry electrode sheet for secondary battery, electrode for secondary battery and secondary battery
US-2023378422-A1 · Nov 23, 2023 · US
Method of making a fertilizer seed core
US-11806689-B2 · Nov 7, 2023 · US
Die, method of manufacturing die, extruder and method of manufacturing pellet
US-2022410459-A1 · Dec 29, 2022 · US
Extrusion dies for honeycomb body
US-11292152-B2 · Apr 5, 2022 · US
A single-screw extruder and a method for extrusion
US-2022097014-A1 · Mar 31, 2022 · US
Extrusion dies and methods and apparatuses for forming the same
US-2021402644-A1 · Dec 30, 2021 · US
Extrusion dies and methods and apparatuses for forming the same
US-11135740-B2 · Oct 5, 2021 · US
Metal mold for manufacturing honeycomb structure, apparatus for producing metal mold, and method for manufacturing honeycomb structure
US-11000969-B2 · May 11, 2021 · US
Method and apparatus for forming high strength products
US-2021107199-A1 · Apr 15, 2021 · US
Method and apparatus for manufacturing excrement treatment material
US-10945409-B2 · Mar 16, 2021 · US
Method of making a fertilizer seed core
US-2021070671-A1 · Mar 11, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B30B11/221?
- CPC B30B11/221 is the Cooperative Patent Classification code for “extrusion dies.”
- How many patents are filed under CPC B30B11/221 (extrusion dies)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC B30B11/221 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).