Method for compression of aqueous slurry containing solid foreign matter and paper dust, and treatment method of waste gypsum board
US-12559380-B2 · Feb 24, 2026 · US
using pressing worms or screws co-operating with a permeable casing
using pressing worms or screws co-operating with a permeable casing · 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 | B30B9/12 |
| Official title | using pressing worms or screws co-operating with a permeable casing |
| Display label | using pressing worms or screws co-operating with a permeable casing |
| Total patents | 60 |
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 | 11 |
| 2016 | 2 |
| 2017 | 9 |
| 2018 | 6 |
| 2019 | 1 |
| 2020 | 6 |
| 2021 | 11 |
| 2022 | 1 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and device for measuring the filtrate content on a screw press
US-12365159-B2 · Jul 22, 2025 · US
Juice extraction module for juicer
US-12349716-B2 · Jul 8, 2025 · US
Method for producing a screen body, and screen
US-12319022-B2 · Jun 3, 2025 · US
Method and Device for Measuring the Filtrate Content On a Screw Press
US-2024239073-A1 · Jul 18, 2024 · US
Device for sludge treatment
US-11981589-B2 · May 14, 2024 · US
Screw feeder
US-11919269-B2 · Mar 5, 2024 · US
Feeding arrangement
US-11879209-B2 · Jan 23, 2024 · US
Food processor
US-11786065-B2 · Oct 17, 2023 · US
Method for compression of aqueous slurry containing solid foreign matter and paper dust, and treatment method of waste gypsum board
US-2023257277-A1 · Aug 17, 2023 · US
Solid feces treatment apparatus and individual feces treatment system including same
US-2023194081-A1 · Jun 22, 2023 · US
Organics recovery from dry fraction
US-11613484-B2 · Mar 28, 2023 · US
Method for producing a screen body, and screen
US-2023081259-A1 · Mar 16, 2023 · US
Food processor
US-11446890-B2 · Sep 20, 2022 · US
Method for removing liquid from a slurry
US-11179909-B2 · Nov 23, 2021 · US
Juice extraction module for juicer
US-2021329959-A1 · Oct 28, 2021 · US
Juice extraction module for juicer
US-11147303-B2 · Oct 19, 2021 · US
Food processor
US-2021212498-A1 · Jul 15, 2021 · US
A screw feeder
US-2021206131-A1 · Jul 8, 2021 · US
Screw press
US-11052626-B2 · Jul 6, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B30B9/12?
- CPC B30B9/12 is the Cooperative Patent Classification code for “using pressing worms or screws co-operating with a permeable casing.”
- How many patents are filed under CPC B30B9/12 (using pressing worms or screws co-operating with a permeable casing)?
- Our database includes 60 publications tagged with this CPC code.
- Is patent activity under CPC B30B9/12 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).