Method of using permeable membrane in the debulking of cmc prepreg material
US-12428349-B2 · Sep 30, 2025 · US
by fluid pressure acting directly on the material, e.g. using vacuum, air pressure
by fluid pressure acting directly on the material, e.g. using vacuum, air pressure · 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 | B28B13/021 |
| Official title | {by fluid pressure acting directly on the material, e.g. using vacuum, air pressure} |
| Display label | by fluid pressure acting directly on the material, e.g. using vacuum, air pressure |
| Total patents | 29 |
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 | 3 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 3 |
| 2024 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multi-stage consolidation process for ceramic matrix composite prepreg material
US-12215062-B2 · Feb 4, 2025 · US
Apparatus for extruding ceramic slurry
US-12115697-B2 · Oct 15, 2024 · US
Method of using permeable membrane in the debulking of cmc prepreg material
US-2024158306-A1 · May 16, 2024 · US
Multi-stage consolidation process for ceramic matrix composite prepreg material
US-2024158307-A1 · May 16, 2024 · US
Alumina ceramic integrated hot press molding machine and working method thereof
US-11890781-B2 · Feb 6, 2024 · US
Process for applying granular material on an outer side of a food product
US-11324248-B2 · May 10, 2022 · US
Alumina ceramic integrated hot press molding machine and working method thereof
US-2022111554-A1 · Apr 14, 2022 · US
Method for injecting a loaded slurry into a fibrous texture
US-11255203-B2 · Feb 22, 2022 · US
Apparatus for extruding ceramic slurry
US-2021394392-A1 · Dec 23, 2021 · US
Vacuum infiltration system for ceramic matrix composites
US-11161792-B2 · Nov 2, 2021 · US
Apparatus for extruding ceramic slurry
US-11123895-B2 · Sep 21, 2021 · US
Vacuum infiltration system for ceramic matrix composites
US-2021009479-A1 · Jan 14, 2021 · US
Method for injecting a loaded slurry into a fibrous texture
US-2020269468-A1 · Aug 27, 2020 · US
Self-pouring mold system and method of fire-proofing, repairing, and reinforcing using the same
US-10737405-B2 · Aug 11, 2020 · US
Injection molding apparatus and injection molding method
US-2020223094-A1 · Jul 16, 2020 · US
Injection molding apparatus and injection molding method
US-2020223093-A1 · Jul 16, 2020 · US
Method for manufacturing insulator for spark plug
US-10637212-B2 · Apr 28, 2020 · US
Process for applying granular material on an outer side of a food product
US-2020046011-A1 · Feb 13, 2020 · US
Part made from oxide/oxide composite material for 3-D reinforcing and method for manufacture of same
US-10400367-B2 · Sep 3, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B28B13/021?
- CPC B28B13/021 is the Cooperative Patent Classification code for “by fluid pressure acting directly on the material, e.g. using vacuum, air pressure.”
- How many patents are filed under CPC B28B13/021 (by fluid pressure acting directly on the material, e.g. using vacuum, air pressure)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC B28B13/021 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).