Method of making nanocomposite from date palm tree and saudi bentonite
US-2024261760-A1 · Aug 8, 2024 · 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 | C02F1/286 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 342 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 28 |
| 2016 | 24 |
| 2017 | 32 |
| 2018 | 29 |
| 2019 | 39 |
| 2020 | 32 |
| 2021 | 25 |
| 2022 | 25 |
| 2023 | 34 |
| 2024 | 40 |
| 2025 | 29 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Iron-functionalized alginate for phosphate and other contaminant removal and recovery from aqueous solutions
US-9815710-B2 · Nov 14, 2017 · US
Particulate medium prepared from partially decomposed organic matter for selective sorption between competing metal ions in aqueous solutions
US-2017165659-A1 · Jun 15, 2017 · US
Particulate Sorption Medium Prepared From Partially Decomposed Organic Matter
US-2017157592-A1 · Jun 8, 2017 · US
System and method for recycling rare earth and ammonia nitrogen from rare earth wastewater
US-2017137300-A1 · May 18, 2017 · US
Method for preparing an adsorbent for removing organic dyes from water
US-9643861-B1 · May 9, 2017 · US
Process for preparing lipid coated particles of plant material
US-9592488-B2 · Mar 14, 2017 · US
Particulate sorption medium prepared from partially decomposed organic matter
US-9561489-B2 · Feb 7, 2017 · US
Materials and Methods for Oil Removal
US-2016354198-A1 · Dec 8, 2016 · US
Multi-media stratified filtration
US-2016347626-A1 · Dec 1, 2016 · US
Water treatment apparatus and water treatment method using the same
US-2016340209-A1 · Nov 24, 2016 · US
Water Detoxification by a Substrate-Bound Catecholamine Adsorbent
US-2016318774-A1 · Nov 3, 2016 · US
Method for the removal of organic components from a mixture of organic components and water
US-9458032-B2 · Oct 4, 2016 · US
Degasser and method of stripping gas from a liquid
US-2016279537-A1 · Sep 29, 2016 · US
Method for recovering tungsten compound
US-9447478-B2 · Sep 20, 2016 · US
Production method for porous cellulose beads, and adsorbent employing same
US-2016251394-A1 · Sep 1, 2016 · US
Mineral Precipitation Methods
US-2016236943-A1 · Aug 18, 2016 · US
Filter cartridge
US-2016220925-A1 · Aug 4, 2016 · US
Adsorbent composite from natural raw materials to remove heavy metals from water
US-9382133-B2 · Jul 5, 2016 · US
Iron-functionalized alginate for phosphate and other contaminant removal and recovery from aqueous solutions
US-9359228-B2 · Jun 7, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F1/286?
- CPC C02F1/286 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C02F1/286 (Chemistry & Metallurgy)?
- Our database includes 342 publications tagged with this CPC code.
- Is patent activity under CPC C02F1/286 growing?
- Publication counts under this code: 40 in 2024 vs 29 in 2025 (latest complete years).