Plant and method for treating urban waste water
US-2020331784-A1 · Oct 22, 2020 · 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 | C02F3/06 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 102 |
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 | 6 |
| 2016 | 15 |
| 2017 | 9 |
| 2018 | 11 |
| 2019 | 15 |
| 2020 | 6 |
| 2021 | 9 |
| 2022 | 4 |
| 2023 | 10 |
| 2024 | 12 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Side stream treatment for overflow
US-10669176-B2 · Jun 2, 2020 · US
Active carbon and microorganism coupling device for removing pesticide out of farmland drainage water
US-2020123036-A1 · Apr 23, 2020 · US
Eductor-based membrane bioreactor
US-2020055756-A1 · Feb 20, 2020 · US
Apparatus and operating method for deep denitrification and toxicity reduction of wastewater
US-2019389756-A1 · Dec 26, 2019 · US
Water treatment system
US-10513452-B2 · Dec 24, 2019 · US
Non-stripping bioreactor for biological sulfide oxidation from wastewaters and groundwaters containing hydrogen sulfide
US-10501352-B2 · Dec 10, 2019 · US
Self-regenerating biofilter
US-10494272-B2 · Dec 3, 2019 · US
Efficient Bio-Inorganic System For Treatment Of Sulphidic Wastewater Streams Containing Other Contaminants
US-2019284071-A1 · Sep 19, 2019 · US
Eductor-based membrane bioreactor
US-10392279-B2 · Aug 27, 2019 · US
Backwash method for biological reactors
US-10392277-B2 · Aug 27, 2019 · US
Partial bed backwashing for packed bed reactor
US-10364171-B2 · Jul 30, 2019 · US
Gravity feed water treatment system
US-10336639-B2 · Jul 2, 2019 · US
Internal sulfur cycling SANI (ISC-SANI) process for biological wastewater treatment
US-10301204-B2 · May 28, 2019 · US
Regulating method for a water treatment installation using measured parameters and control of an ozonisation device
US-10287182-B2 · May 14, 2019 · US
Apparatus for relieving surface-layer clogging of denitrification deep-bed filter and method for running the same
US-10239775-B2 · Mar 26, 2019 · US
Processes for treatment of spent alkaline waste streams
US-2019084854-A1 · Mar 21, 2019 · US
Seawater pretreatment device
US-10207942-B2 · Feb 19, 2019 · US
Self-regenerating biofilter
US-2019047876-A1 · Feb 14, 2019 · US
Dual media system for treating wastewater containing selenium
US-10131559-B2 · Nov 20, 2018 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F3/06?
- CPC C02F3/06 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C02F3/06 (Chemistry & Metallurgy)?
- Our database includes 102 publications tagged with this CPC code.
- Is patent activity under CPC C02F3/06 growing?
- Publication counts under this code: 12 in 2024 vs 3 in 2025 (latest complete years).