Internal sulfur cycling sani (isc-sani) process for biological wastewater treatment
US-2017369350-A1 · Dec 28, 2017 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C02F3/006 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 423 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 25 |
| 2016 | 23 |
| 2017 | 37 |
| 2018 | 24 |
| 2019 | 43 |
| 2020 | 48 |
| 2021 | 52 |
| 2022 | 44 |
| 2023 | 38 |
| 2024 | 33 |
| 2025 | 46 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for nitrogen removal from aqueous medium
US-2017275192-A1 · Sep 28, 2017 · US
Side Stream Treatment for Overflow
US-2017247274-A1 · Aug 31, 2017 · US
Method for sludge ozonation in a wastewater treatment system
US-9738549-B2 · Aug 22, 2017 · US
Reduction of hydrogen sulfide and/or malodor gassing from water via the addition of peroxyacetic acid/hydrogen peroxide product
US-2017225983-A1 · Aug 10, 2017 · US
Reduction of hydrogen sulfide and/or malodor gassing from water via the addition of peroxyacetic acid/hydrogen peroxide product
US-9663390-B2 · May 30, 2017 · US
Plant for treatment of liquid as well as method for controlling such a plant
US-2017144909-A1 · May 25, 2017 · US
Methods for the conversion of fish waste from aquaculture systems to methane via a modified UASB reactor
US-9637402-B2 · May 2, 2017 · US
Sonicated biological hydrogen reactor
US-2017101616-A1 · Apr 13, 2017 · US
Processing of aqueous waste streams to remove naphthenic acids
US-2017088447-A1 · Mar 30, 2017 · US
Self-regenerating biofilter
US-2017088448-A1 · Mar 30, 2017 · US
Integrated hydrodynamic separator (hds) structure, effluent channel for separating mixed liquor suspended solids (mlss) in wastewater treatment
US-2017066669-A1 · Mar 9, 2017 · US
Seawater pretreatment device
US-2016368796-A1 · Dec 22, 2016 · US
Sludge treatment system and sludge treatment method
US-2016368797-A1 · Dec 22, 2016 · US
Biofilm filter device, desalination system, and biofilm filter device cleaning method
US-2016332901-A1 · Nov 17, 2016 · US
Dual-compartment bioreactor for use in wastewater treatment and algal production
US-9487748-B2 · Nov 8, 2016 · US
Algal-sludge granule for wastewater treatment and bioenergy feedstock generation
US-2016318782-A1 · Nov 3, 2016 · US
Natural pyrrhotite biological filter and method for utilizing same to synchronously remove nitrate-nitrogen and phosphorus from water
US-2016311712-A1 · Oct 27, 2016 · US
Use of primary sludge for carbon source in an aerated-anoxic bioreactor system
US-9409807-B2 · Aug 9, 2016 · US
Process to treat industrial wastewater
US-9376335-B2 · Jun 28, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F3/006?
- CPC C02F3/006 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C02F3/006 (Chemistry & Metallurgy)?
- Our database includes 423 publications tagged with this CPC code.
- Is patent activity under CPC C02F3/006 growing?
- Publication counts under this code: 33 in 2024 vs 46 in 2025 (latest complete years).