Grey water system
US-2024051852-A1 · Feb 15, 2024 · US
characterised by the material
characterised by the material · 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 | C02F2001/46133 |
| Official title | {characterised by the material} |
| Display label | characterised by the material |
| Total patents | 394 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 13 |
| 2017 | 19 |
| 2018 | 23 |
| 2019 | 33 |
| 2020 | 47 |
| 2021 | 50 |
| 2022 | 39 |
| 2023 | 51 |
| 2024 | 49 |
| 2025 | 39 |
| 2026 | 13 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrolysis electrode
US-2018354821-A1 · Dec 13, 2018 · US
Electrolytic reduction module and water purification device
US-2018346353-A1 · Dec 6, 2018 · US
Cod abatement process for electrochemical oxidation
US-10144659-B2 · Dec 4, 2018 · US
Electrolysis electrode
US-10059607-B2 · Aug 28, 2018 · US
Chlorination-assisted coagulation processes for water purification
US-2018230026-A1 · Aug 16, 2018 · US
Water purification using porous carbon electrode
US-2018222781-A1 · Aug 9, 2018 · US
Bismuth-based chloride-storage electrodes
US-2018201524-A1 · Jul 19, 2018 · US
High temperature oxygen treated carbon aerogels
US-10008338-B2 · Jun 26, 2018 · US
Plasma generation method and sterile water production method
US-2018002199-A1 · Jan 4, 2018 · US
Irrigation system
US-2017362722-A1 · Dec 21, 2017 · US
Aquaculture system
US-2017362103-A1 · Dec 21, 2017 · US
Processes and apparatuses for removal of carbon, phosphorus and nitrogen
US-9771281-B2 · Sep 26, 2017 · US
Composition for electrode of capacitive deionization apparatus, and electrode including same
US-9771282-B2 · Sep 26, 2017 · US
Capacitive deionization electrodes, capacitive deionization apparatuses including the same, and production methods thereof
US-9758391-B2 · Sep 12, 2017 · US
Bromide removal from aqueous solutions
US-2017247801-A1 · Aug 31, 2017 · US
Nitrate reduction method, nitrate reduction catalyst, nitrate reduction electrode, fuel cell, and water treatment apparatus
US-2017217800-A1 · Aug 3, 2017 · US
Gyroidal mesoporous carbon materials and methods thereof
US-9714173-B2 · Jul 25, 2017 · US
Electrode, and fuel cell and water treatment equipment each using same
US-2017207474-A1 · Jul 20, 2017 · US
Method and reactor for removing organic matters by immobilized-enzymatic electrode coupled electro-coagulation
US-9708203-B2 · Jul 18, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2001/46133?
- CPC C02F2001/46133 is the Cooperative Patent Classification code for “characterised by the material.”
- How many patents are filed under CPC C02F2001/46133 (characterised by the material)?
- Our database includes 394 publications tagged with this CPC code.
- Is patent activity under CPC C02F2001/46133 growing?
- Publication counts under this code: 49 in 2024 vs 39 in 2025 (latest complete years).