Method for treating and recycling organic wastewater and apparatus
US-10501355-B2 · Dec 10, 2019 · 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 | C02F5/02 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 155 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 19 |
| 2017 | 12 |
| 2018 | 12 |
| 2019 | 19 |
| 2020 | 13 |
| 2021 | 19 |
| 2022 | 12 |
| 2023 | 14 |
| 2024 | 11 |
| 2025 | 13 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and Process for Treating Produced and FRAC Flowback Waters
US-2019352206-A1 · Nov 21, 2019 · US
Production of ultra-high-density brines using transiently-operated desalination systems
US-10479701-B2 · Nov 19, 2019 · US
Bioelectrochemical system having polyvalent ion removing function
US-10407327-B2 · Sep 10, 2019 · US
Water treatment system and power generation facility
US-10399878-B2 · Sep 3, 2019 · US
Selective scaling in desalination water treatment systems and associated methods
US-2019106334-A1 · Apr 11, 2019 · US
Aircraft
US-2019063046-A1 · Feb 28, 2019 · US
Scale trapping unit and water heater
US-10197293-B2 · Feb 5, 2019 · US
Method for treating an effluent supersaturated with calcium carbonate in the presence of phosphonate precipitation-inhibiting products
US-2019023595-A1 · Jan 24, 2019 · US
Production of ultra-high-density brines using transiently-operated desalination systems
US-2019002306-A1 · Jan 3, 2019 · US
Wastewater treatment processes employing high rate chemical softening systems
US-10160683-B2 · Dec 25, 2018 · US
Corrosion inhibition in hydrothermal processing
US-2018345241-A1 · Dec 6, 2018 · US
System and method for softening water for use in a scrubber
US-10144661-B2 · Dec 4, 2018 · US
Selective scaling in desalination water treatment systems and associated methods
US-10144654-B2 · Dec 4, 2018 · US
Self-regenerating anion exchange process for treating shale gas flowback waste water
US-10125033-B2 · Nov 13, 2018 · US
Supercritical vessel and related methods of separating dissolved solids from a fluid
US-2018147551-A1 · May 31, 2018 · US
Production of ultra-high-density brines using transiently-operated desalination systems
US-9981860-B2 · May 29, 2018 · US
Submerged membrane filtration system using reciprocating membrane
US-2018117531-A1 · May 3, 2018 · US
Technique for removal of organics and dissolved solids from aqueous medias via supercritical treatment
US-9950939-B2 · Apr 24, 2018 · US
Methods and compositions for clarifying produced waters for boiler feed waters
US-2018105442-A1 · Apr 19, 2018 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F5/02?
- CPC C02F5/02 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C02F5/02 (Chemistry & Metallurgy)?
- Our database includes 155 publications tagged with this CPC code.
- Is patent activity under CPC C02F5/02 growing?
- Publication counts under this code: 11 in 2024 vs 13 in 2025 (latest complete years).