Mineral recovery and chemical production from produced water in a gas oil separation plant
US-2026070826-A1 · Mar 12, 2026 · US
Alkaline earth metal compounds or magnesium compounds
Alkaline earth metal compounds or magnesium 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 | C25B1/18 |
| Official title | Alkaline earth metal compounds or magnesium compounds |
| Display label | Alkaline earth metal compounds or magnesium compounds |
| Total patents | 41 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 1 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 9 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods for producing metal carbide and hydrocarbon, and carboncontaining member
US-2026035826-A1 · Feb 5, 2026 · US
Methods for producing metal carbide and hydrocarbon, and carbon-containing member
US-2026035804-A1 · Feb 5, 2026 · US
Method for producing metal carbide, method for producing hydrocarbon, and metal carbide composition
US-2025369129-A1 · Dec 4, 2025 · US
Anaerobic digestion system and process for poultry litter treatment with water recirculation
US-2025313965-A1 · Oct 9, 2025 · US
Electrochemical synthesis of cementitious compounds
US-12428738-B2 · Sep 30, 2025 · US
Method for producing metal carbide, method for producing hydrocarbon, and metal carbide composition
US-12416087-B2 · Sep 16, 2025 · US
Carbon dioxide fixation method and carbon dioxide fixation system
US-12364948-B2 · Jul 22, 2025 · US
Method of electrodeposition in seawater for the growth of construction materials
US-2025215578-A1 · Jul 3, 2025 · US
Electrochemical carbon removal from water via carbon mineralization
US-2025178933-A1 · Jun 5, 2025 · US
Liquid metal cathodes for electrolysis of metal carbonates in molten salts
US-12305298-B2 · May 20, 2025 · US
Staged methods and systems for the valorization of sludge and biosolids
US-2025034018-A1 · Jan 30, 2025 · US
Seawater electrolysis enables scalable atmospheric co2 mineralization
US-2024342649-A1 · Oct 17, 2024 · US
Method for producing metal carbide, method for producing hydrocarbon, and metal carbide composition
US-2024286974-A1 · Aug 29, 2024 · US
Method for producing metal carbide, method for producing hydrocarbon, and metal carbide composition
US-2024240332-A1 · Jul 18, 2024 · US
Methods of lithiating electroactive materials
US-2024213438-A1 · Jun 27, 2024 · US
Method and electrolysis device for the production of chlorine, carbon monoxide and optionally hydrogen
US-2024084462-A1 · Mar 14, 2024 · US
ELECTROCHEMICAL Ca(OH)2 AND/OR Mg(OH)2 PRODUCTION FROM INDUSTRIAL WASTES AND Ca/Mg-CONTAINING ROCKS
US-2023125242-A1 · Apr 27, 2023 · US
Electrochemical Synthesis of Cementitious Compounds
US-2022380909-A1 · Dec 1, 2022 · US
Carbon dioxide fixation method and carbon dioxide fixation system
US-2022297058-A1 · Sep 22, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25B1/18?
- CPC C25B1/18 is the Cooperative Patent Classification code for “Alkaline earth metal compounds or magnesium compounds.”
- How many patents are filed under CPC C25B1/18 (Alkaline earth metal compounds or magnesium compounds)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC C25B1/18 growing?
- Publication counts under this code: 5 in 2024 vs 9 in 2025 (latest complete years).