Electrodeposition systems
US-2026002282-A1 · Jan 1, 2026 · US
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by ion-exchange
by ion-exchange · 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 | C25D21/22 |
| Official title | by ion-exchange |
| Display label | by ion-exchange |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 3 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multi-compartment electrochemical replenishment cell
US-11697887-B2 · Jul 11, 2023 · US
Regeneration method for gold plating solution
US-2023203665-A1 · Jun 29, 2023 · US
Multi-compartment electrochemical replenishment cell
US-2022127747-A1 · Apr 28, 2022 · US
Method and device for filtering a platinum bath by electrodialysis
US-2021079551-A1 · Mar 18, 2021 · US
Electro-ceramic coating bath cleanup by a hybrid ion exchange precipitation process
US-2019292680-A1 · Sep 26, 2019 · US
Method for regenerating plating liquid, plating method, and plating apparatus
US-2017283953-A1 · Oct 5, 2017 · US
Method for regenerating plating liquid, plating method, and plating apparatus
US-9702044-B2 · Jul 11, 2017 · US
Membrane design for reducing defects in electroplating systems
US-9677190-B2 · Jun 13, 2017 · US
Plating device
US-2016201213-A1 · Jul 14, 2016 · US
Membrane design for reducing defects in electroplating systems
US-2015122658-A1 · May 7, 2015 · US
Method for regenerating plating liquid, plating method, and plating apparatus
US-2015037512-A1 · Feb 5, 2015 · US