Composite treatment and remediation technology for polluted water and soil
US-12441640-B2 · Oct 14, 2025 · US
Granular carriers
Granular carriers · 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 | C02F3/104 |
| Official title | {Granular carriers} |
| Display label | Granular carriers |
| Total patents | 62 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 9 |
| 2020 | 6 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 8 |
| 2024 | 13 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Water treatment system with biocontactor
US-2025223209-A1 · Jul 10, 2025 · US
Wastewater treatment device and method
US-12344542-B2 · Jul 1, 2025 · US
Biofilm Carrier Media in Moving Bed Biofilm Reactor Processes
US-2024425398-A1 · Dec 26, 2024 · US
System and method for continuous metabolism of contaminants of emerging concern
US-2024391811-A1 · Nov 28, 2024 · US
Water aeration and treatment method
US-12145874-B1 · Nov 19, 2024 · US
Water aeration and treatment method
US-2024375982-A1 · Nov 14, 2024 · US
Temperature controlled biological growth surfaces for higher microbial activity in bioprocessing
US-2024344010-A1 · Oct 17, 2024 · US
Biofilm carrier media in moving bed biofilm reactor processes
US-12110243-B2 · Oct 8, 2024 · US
Water retention and aeration treatment method for contaminated water
US-12091341-B2 · Sep 17, 2024 · US
Water retention and aeration treatment method for contaminated water
US-2024228344-A1 · Jul 11, 2024 · US
Method for removal of noxious taste or odor compounds from aquaculture system by bioactive hydrophobic carriers
US-2024166541-A1 · May 23, 2024 · US
Wastewater treatment device and method
US-2024158270-A1 · May 16, 2024 · US
Septic water treatment method for removing carbonaceous and nitrogenous compounds
US-11981591-B2 · May 14, 2024 · US
Aerated Biological Filtration Process for Water Treatment with a View to Reducing the Nitrogen Content (NGL) of Said Water with Reduction of Carbon-Source and Aeration Requirements
US-2024101454-A1 · Mar 28, 2024 · US
System for the biological treatment of water and corresponding method
US-11878923-B2 · Jan 23, 2024 · US
Septic water treatment method for removing carbonaceous and nitrogenous compounds
US-2023373827-A1 · Nov 23, 2023 · US
Method for water treatment and recycling
US-11767243-B2 · Sep 26, 2023 · US
Decontamination of Environmental Water Sources Using Living Engineered Biofilm Materials
US-2023295023-A1 · Sep 21, 2023 · US
Method for controlling growth of blue algae in water area by utilizing eucalyptus
US-11760671-B2 · Sep 19, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F3/104?
- CPC C02F3/104 is the Cooperative Patent Classification code for “Granular carriers.”
- How many patents are filed under CPC C02F3/104 (Granular carriers)?
- Our database includes 62 publications tagged with this CPC code.
- Is patent activity under CPC C02F3/104 growing?
- Publication counts under this code: 13 in 2024 vs 5 in 2025 (latest complete years).