Using synthetic lixiviant biology for the recovery of precious and toxic metals from anthropogenic sources
US-12584191-B2 · Mar 24, 2026 · US
by cyaniding
by cyaniding · 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 | C22B11/08 |
| Official title | by cyaniding |
| Display label | by cyaniding |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 5 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 7 |
| 2023 | 2 |
| 2024 | 6 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
The Use of Cyanogenic Bacteria to Leach Gold
US-2025207219-A1 · Jun 26, 2025 · US
Materials and methods for increasing gold recovery from leachate solutions
US-2025043387-A1 · Feb 6, 2025 · US
Hydrometallurgical treatment of ores or concentrates for removal of preg-robbing organic carbon material
US-2024376566-A1 · Nov 14, 2024 · US
Supramolecular gold stripping from activated carbon using alpha-cyclodextrin
US-2024375084-A1 · Nov 14, 2024 · US
Recycling printed circuit boards using swelling agent
US-2024260199-A1 · Aug 1, 2024 · US
Recycling printed circuit boards using swelling agent
US-12035480-B1 · Jul 9, 2024 · US
Method of improving gold recovery in a cyanide leaching circuit
US-12000015-B2 · Jun 4, 2024 · US
Process for gold and/or platinum group metals heap leaching with lime
US-2024002977-A1 · Jan 4, 2024 · US
Process for removing cyanide from a cyanide-bearing aqueous fluid
US-2023399241-A1 · Dec 14, 2023 · US
Alkaline Oxidation Process and Device for Treating Refractory Sulfide Ore, in Particular Refractory Gold Ore
US-2023128925-A1 · Apr 27, 2023 · US
Using synthetic lixiviant biology for the recovery of precious and toxic metals from anthropogenic sources
US-2022205062-A1 · Jun 30, 2022 · US
Method of separating mercury from an ore leachate
US-11359261-B2 · Jun 14, 2022 · US
Process for Gold and/or Platinum Group Metals Heap Leaching with Lime
US-2022170133-A1 · Jun 2, 2022 · US
Method for recovering copper, molybdenum, and precious metals from silicate-containing ore
US-2022119917-A1 · Apr 21, 2022 · US
Method for recovering copper, molybdenum, and precious metals from mineral ores via pressure oxidation
US-2022119913-A1 · Apr 21, 2022 · US
Methods of base metal recovery with applications of oxygen vectors
US-2022119916-A1 · Apr 21, 2022 · US
Method for Extracting Gold and/or Silver and/or at Least One Platinum Metal
US-2022074021-A1 · Mar 10, 2022 · US
Leaching aids and methods of using leaching aids
US-2021381079-A1 · Dec 9, 2021 · US
Method of improving gold recovery in a cyanide leaching circuit
US-2021301371-A1 · Sep 30, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B11/08?
- CPC C22B11/08 is the Cooperative Patent Classification code for “by cyaniding.”
- How many patents are filed under CPC C22B11/08 (by cyaniding)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC C22B11/08 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).