Pressure-free membrane-type oxygen permeation biofilm reactor driven by sewage thermal energy and its regulation method
US-2024391810-A1 · Nov 28, 2024 · US
Membrane aeration (C02F3/201 takes precedence)
Membrane aeration (C02F3/201 takes precedence) · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C02F3/208 |
| Official title | {Membrane aeration (C02F3/201 takes precedence)} |
| Display label | Membrane aeration (C02F3/201 takes precedence) |
| Total patents | 67 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 8 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 8 |
| 2020 | 12 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 7 |
| 2024 | 8 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for managing worms in membrane aerated biofilm
US-12103877-B2 · Oct 1, 2024 · US
Mabr-based method for treating rare earth mine tailwater
US-2024140842-A1 · May 2, 2024 · US
Simultaneous Nitrification/Denitrification (SNDN) in Sequencing Batch Reactor Applications
US-2024059594-A1 · Feb 22, 2024 · US
Process for managing worms in membrane aerated biofilm
US-2024059595-A1 · Feb 22, 2024 · US
Simultaneous nitrification/denitrification (SNDN) in sequencing batch reactor applications
US-11827550-B2 · Nov 28, 2023 · US
Membrane assembly for supporting a biofilm
US-2023331605-A1 · Oct 19, 2023 · US
Membrane assembly for supporting a biofilm
US-11724947-B2 · Aug 15, 2023 · US
Simultaneous nitrification/denitrification (sndn) in sequencing batch reactor applications
US-2023227340-A1 · Jul 20, 2023 · US
Wastewater treatment with suspended growth and membrane aerated biofilm
US-11673820-B2 · Jun 13, 2023 · US
Simultaneous nitrification/denitrification (SNDN) in sequencing batch reactor applications
US-11577978-B2 · Feb 14, 2023 · US
Floating apparatus for membrane biofilm reactor and process for water treatment
US-2023045679-A1 · Feb 9, 2023 · US
Multistage greywater treatment system
US-2022371932-A1 · Nov 24, 2022 · US
Process for water treatment using membrane biofilm reactor
US-11505483-B2 · Nov 22, 2022 · US
Aerobic biological treatment apparatus
US-11459252-B2 · Oct 4, 2022 · US
Device for Removing Nitrogen and Carbon Using Microporous Aerated Biofilms
US-2022242764-A1 · Aug 4, 2022 · US
Mabr media for supporting aob and annamox bacteria and process for deammonification of wastewater
US-2021355011-A1 · Nov 18, 2021 · US
Membrane biofilm reactors, systems, and methods for producing organic products
US-11155776-B2 · Oct 26, 2021 · US
Wastewater treatment with suspended growth and membrane aerated biofilm
US-2021253460-A1 · Aug 19, 2021 · US
Biological activated carbon treatment apparatus
US-11034602-B2 · Jun 15, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F3/208?
- CPC C02F3/208 is the Cooperative Patent Classification code for “Membrane aeration (C02F3/201 takes precedence).”
- How many patents are filed under CPC C02F3/208 (Membrane aeration (C02F3/201 takes precedence))?
- Our database includes 67 publications tagged with this CPC code.
- Is patent activity under CPC C02F3/208 growing?
- Publication counts under this code: 8 in 2024 vs 3 in 2025 (latest complete years).