Method and system for continuously treating biomass material
US-12385184-B2 · Aug 12, 2025 · US
Discharge devices
Discharge devices · 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 | D21C7/08 |
| Official title | Discharge devices |
| Display label | Discharge devices |
| Total patents | 49 |
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 | 2 |
| 2016 | 6 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 4 |
| 2021 | 8 |
| 2022 | 7 |
| 2023 | 1 |
| 2024 | 7 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Arrangement and method for degassing a pump
US-2025101681-A1 · Mar 27, 2025 · US
Reactor discharge
US-2025034806-A1 · Jan 30, 2025 · US
Arrangement and method for degassing a pump
US-12173451-B2 · Dec 24, 2024 · US
Reactor discharge
US-12139853-B2 · Nov 12, 2024 · US
System for treatment of a biomass material
US-12098505-B2 · Sep 24, 2024 · US
Reactor discharge screw
US-12091817-B2 · Sep 17, 2024 · US
Treatment vessel having reduced outlet end diameter
US-2024247440-A1 · Jul 25, 2024 · US
Method and system for continously treating biomass material
US-2024229353-A1 · Jul 11, 2024 · US
Reactor vessel for biomass material
US-12005418-B2 · Jun 11, 2024 · US
System for treatment of a biomass material and a method for connecting a valve to a transporting pipe
US-11674264-B2 · Jun 13, 2023 · US
Method for cooling and detoxifying biomass
US-11485989-B2 · Nov 1, 2022 · US
Method for cooling and detoxifying biomass
US-11485988-B2 · Nov 1, 2022 · US
Method and apparatus for burning odor gas
US-11486090-B2 · Nov 1, 2022 · US
Method for cooling and detoxifying biomass
US-2022154233-A1 · May 19, 2022 · US
Pulping System Ragger with Reject Handling Control
US-2022154398-A1 · May 19, 2022 · US
Screen assembly for pulp digesters and other treatment vessels in pulp production
US-11255046-B2 · Feb 22, 2022 · US
Arrangement and method for degassing a pump
US-2022025578-A1 · Jan 27, 2022 · US
Reactor discharge screw
US-2021404116-A1 · Dec 30, 2021 · US
Reactor discharge
US-2021254281-A1 · Aug 19, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D21C7/08?
- CPC D21C7/08 is the Cooperative Patent Classification code for “Discharge devices.”
- How many patents are filed under CPC D21C7/08 (Discharge devices)?
- Our database includes 49 publications tagged with this CPC code.
- Is patent activity under CPC D21C7/08 growing?
- Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).