Biologically inoculated sorptive bead media
US-2025382211-A1 · Dec 18, 2025 · US
using activated carbon or the like
using activated carbon or the like · 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 | C02F2003/003 |
| Official title | {using activated carbon or the like} |
| Display label | using activated carbon or the like |
| Total patents | 44 |
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 | 3 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Composite treatment and remediation technology for polluted water and soil
US-12441640-B2 · Oct 14, 2025 · US
Wastewater treatment system and wastewater treatment method using the same
US-2025282662-A1 · Sep 11, 2025 · US
Rainwater garden with reduced nitrous oxide emission
US-2025187961-A1 · Jun 12, 2025 · US
Encapsulated biofilm compositions and methods
US-2025042792-A1 · Feb 6, 2025 · US
System and method for continuous metabolism of contaminants of emerging concern
US-2024391811-A1 · Nov 28, 2024 · US
Biofilm electrochemical reactor for simultaneously removing nitrate nitrogen and trace organic matters in water
US-12103869-B2 · Oct 1, 2024 · US
Method for treating reducible compound residues using iron-containing bioreactor
US-12077461-B2 · Sep 3, 2024 · US
Pure water production method and pure water production apparatus
US-2024279091-A1 · Aug 22, 2024 · US
Ecological slope protection with efficient water purification function and ecological improvment method
US-12012711-B2 · Jun 18, 2024 · US
Apparatus and method for producing pure water
US-2023373826-A1 · Nov 23, 2023 · US
Low cost technology municipal wastewater treatment for safe irrigation reuse
US-11787713-B1 · Oct 17, 2023 · US
Removing heavy metals in a ballasted process
US-11772993-B2 · Oct 3, 2023 · US
Composite treatment and remediation technology for polluted water and soil
US-2023249998-A1 · Aug 10, 2023 · US
Method of fixing arsenic using activated biochar
US-11673821-B2 · Jun 13, 2023 · US
Method of preparing carbonaceous material capable of fixing arsenic and application thereof
US-2022340462-A1 · Oct 27, 2022 · US
Carrier for retaining anammox bacteria for use in wastewater treatment, anammox bacteria-adhered particle, and wastewater treatment apparatus using the carrier
US-11427489-B2 · Aug 30, 2022 · US
Method for enhancing biochemical water treatment by powder carrier
US-11370680-B2 · Jun 28, 2022 · US
Method and system for reducing total carbon consumption in the generation of low chemical oxygen demand treated streams
US-2022194835-A1 · Jun 23, 2022 · US
Removing Heavy Metals in a Ballasted Process
US-2022135455-A1 · May 5, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2003/003?
- CPC C02F2003/003 is the Cooperative Patent Classification code for “using activated carbon or the like.”
- How many patents are filed under CPC C02F2003/003 (using activated carbon or the like)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC C02F2003/003 growing?
- Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).