Iron-functionalized alginate for phosphate and other contaminant removal and recovery from aqueous solutions
US-9815710-B2 · Nov 14, 2017 · US
Arsenic compounds
Arsenic compounds · 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 | C02F2101/103 |
| Official title | {Arsenic compounds} |
| Display label | Arsenic compounds |
| Total patents | 339 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 33 |
| 2017 | 36 |
| 2018 | 29 |
| 2019 | 39 |
| 2020 | 42 |
| 2021 | 32 |
| 2022 | 29 |
| 2023 | 25 |
| 2024 | 21 |
| 2025 | 24 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for preservation, transport, and analysis of water samples
US-2017322127-A1 · Nov 9, 2017 · US
High temperature layered mixed-metal oxide materials with enhanced stability
US-2017266642-A1 · Sep 21, 2017 · US
Particulate Sorption Medium Prepared From Partially Decomposed Organic Matter
US-2017157592-A1 · Jun 8, 2017 · US
Particulate sorption medium prepared from partially decomposed organic matter
US-9561489-B2 · Feb 7, 2017 · US
Adsorption material and method of fabricating the same
US-2016375422-A1 · Dec 29, 2016 · US
Inorganic material for removing harmful substance from wastewater and method of preparing the same, and method for wastewater treatment
US-2016375433-A1 · Dec 29, 2016 · US
Method for removing hydrogen phosphate from an aqueous solution using alpha zirconium phosphate
US-9517424-B2 · Dec 13, 2016 · US
Composite membrane with multi-layered active layer
US-9504967-B2 · Nov 29, 2016 · US
Water treatment system
US-2016340217-A1 · Nov 24, 2016 · US
Methods for removing contaminants from aqueous solutions using photoelectrocatalytic oxidization
US-2016332902-A1 · Nov 17, 2016 · US
Medium material and its preparation method for elimination of arsenic pollution from groundwater
US-2016332137-A1 · Nov 17, 2016 · US
Methods for removing contaminants from aqueous systems
US-2016304366-A1 · Oct 20, 2016 · US
Method for selective electrochemical removal of ions in water/wastewater
US-2016297695-A1 · Oct 13, 2016 · US
Dolomite-based heavy metal adsorbent for heavy metal, halogen and metalloid, a method for preparing thereof, a method for controlling a quality thereof, and a method for adsorbing heavy metal, halogen and metalloid
US-2016288084-A1 · Oct 6, 2016 · US
Method for removing heavy metals from water
US-2016264432-A1 · Sep 15, 2016 · US
Method for selectively binding and separating phosphate anions
US-9434627-B2 · Sep 6, 2016 · US
Water filters for gravity-fed water filter pitchers
US-2016244341-A1 · Aug 25, 2016 · US
Water purification compositions of magnesium oxide and applications thereof
US-9422169-B2 · Aug 23, 2016 · US
Gravity feed water treatment system
US-2016236958-A1 · Aug 18, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2101/103?
- CPC C02F2101/103 is the Cooperative Patent Classification code for “Arsenic compounds.”
- How many patents are filed under CPC C02F2101/103 (Arsenic compounds)?
- Our database includes 339 publications tagged with this CPC code.
- Is patent activity under CPC C02F2101/103 growing?
- Publication counts under this code: 21 in 2024 vs 24 in 2025 (latest complete years).