Process for Separating Trichomes from Non-Trichome Materials
US-2025101680-A1 · Mar 27, 2025 · US
Straining or screening the pulp
Straining or screening the pulp · Cooperative Patent Classification (CPC)
Textile and paper production, treatment, and products.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | D21D5/02 |
| Official title | Straining or screening the pulp |
| Display label | Straining or screening the pulp |
| Total patents | 38 |
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 | 2 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 6 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multistage screen sorting device
US-12239997-B2 · Mar 4, 2025 · US
Cellulose-based gas barrier film
US-2025059710-A1 · Feb 20, 2025 · US
Strength enhancement agent for paper and paperboard
US-2025059712-A1 · Feb 20, 2025 · US
A method for manufacturing a purified fiber fraction from used beverage carton
US-2025012011-A1 · Jan 9, 2025 · US
A Method for Treating Textile Fibers of Different Lengths
US-2024410111-A1 · Dec 12, 2024 · US
System and method of producing micro fibrillated cellulose (MFC)
US-12006628-B2 · Jun 11, 2024 · US
Process for Separating Trichomes from Non-Trichome Materials
US-2024110333-A1 · Apr 4, 2024 · US
Multistage screen sorting device
US-2024066527-A1 · Feb 29, 2024 · US
Process for separating trichomes from non-trichome materials
US-11879211-B2 · Jan 23, 2024 · US
Fiber body forming apparatus and control method of fiber body forming apparatus
US-11732415-B2 · Aug 22, 2023 · US
System and Method of Producing Micro Fibrillated Cellulose (MFC)
US-2023193558-A1 · Jun 22, 2023 · US
Method and System for Producing Recycled Fibers for MDF or HDF Production
US-2023118469-A1 · Apr 20, 2023 · US
System and method of producing micro fibrillated cellulose (MFC)
US-2023071986-A1 · Mar 9, 2023 · US
Process for Separating Trichomes from Non-Trichome Materials
US-2022403595-A1 · Dec 22, 2022 · US
Pulp Treating Apparatus and Method
US-2022396916-A1 · Dec 15, 2022 · US
Fiber processing device, fibrous feedstock recycling device, and control method of a fiber processing device
US-11390992-B2 · Jul 19, 2022 · US
Fiber body forming apparatus and control method of fiber body forming apparatus
US-2022205181-A1 · Jun 30, 2022 · US
Classifying device and fibrous feedstock recycling device
US-11072887-B2 · Jul 27, 2021 · US
Defibrating device and sheet manufacturing apparatus
US-10961657-B2 · Mar 30, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D21D5/02?
- CPC D21D5/02 is the Cooperative Patent Classification code for “Straining or screening the pulp.”
- How many patents are filed under CPC D21D5/02 (Straining or screening the pulp)?
- Our database includes 38 publications tagged with this CPC code.
- Is patent activity under CPC D21D5/02 growing?
- Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).