Sulfonate electroplating bath, process for refining metal by electrolytic depositing and process for controlling metal morphology in electrolytic refining
US-12509789-B2 · Dec 30, 2025 · US
This page is not indexed by search engines while we improve data quality.
of lead
of lead · 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 | C25C1/18 |
| Official title | of lead |
| Display label | of lead |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 2 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods and systems of controlling bidirectional operation of an electrowinning plant
US-2025011959-A1 · Jan 9, 2025 · US
Electrochemical metallurgical process for extracting metals and sulfur from metallic sulfides
US-2024328022-A1 · Oct 3, 2024 · US
Sulfonate electroplating bath, process for refining metal by electrolytic depositing and process for controlling metal morphology in electrolytic refining
US-2024287696-A1 · Aug 29, 2024 · US
Systems and methods for processing ash
US-2023330724-A1 · Oct 19, 2023 · US
Reactor systems for recovering metals, and related methods
US-11035023-B2 · Jun 15, 2021 · US
Electrochemical deposition for metal ion extraction/removal from water
US-10981793-B2 · Apr 20, 2021 · US
Electrochemical recycling of lead-based materials
US-10774433-B2 · Sep 15, 2020 · US
Reactor systems for recovering metals, and related methods
US-2019352742-A1 · Nov 21, 2019 · US
Methods for recovering metals from electronic waste, and related systems
US-10378081-B2 · Aug 13, 2019 · US
Electrochemical Deposition for Metal Ion Extraction/Removal from Water
US-2019135638-A1 · May 9, 2019 · US
Method for electrolytically refining lead in sulfamate bath
US-10106904-B2 · Oct 23, 2018 · US
Hydrometallurgical electrowinning of lead from spent lead-acid batteries
US-10062933-B2 · Aug 28, 2018 · US
Electrochemical Recycling Of Lead-Based Materials
US-2018179650-A1 · Jun 28, 2018 · US
Methods for recovering metals from electronic waste, and related systems
US-2017362681-A1 · Dec 21, 2017 · US
Methods for recovering metals from electronic waste, and related systems
US-9777346-B2 · Oct 3, 2017 · US
Hydrometallurgical electrowinning of lead from spent lead-acid batteries
US-2017170531-A1 · Jun 15, 2017 · US
Method of refining solder materials
US-9666547-B2 · May 30, 2017 · US
Methods for recovering metals from electronic waste, and related systems
US-2017067135-A1 · Mar 9, 2017 · US
Method for electrolytically refining lead in sulfamate bath
US-2016160369-A1 · Jun 9, 2016 · US