Methods and systems for polarization control
US-10160670-B2 · Dec 25, 2018 · US
Voltage
Voltage · 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 | C02F2201/46135 |
| Official title | Voltage |
| Display label | Voltage |
| Total patents | 228 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 10 |
| 2017 | 16 |
| 2018 | 25 |
| 2019 | 16 |
| 2020 | 22 |
| 2021 | 24 |
| 2022 | 22 |
| 2023 | 34 |
| 2024 | 26 |
| 2025 | 14 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrodialysis systems and methods for desalination
US-2018362370-A1 · Dec 20, 2018 · US
Electro-deionization control system
US-10155672-B2 · Dec 18, 2018 · US
Method and apparatus for controlling concentration of free chlorine, and sterilization method and sterilization apparatus each utilizing said method and said apparatus
US-10131555-B2 · Nov 20, 2018 · US
Deionization filter device and water treatment device comprising deionization filter device
US-2018326356-A1 · Nov 15, 2018 · US
System to reduce interface emulsion layer formation in an electrostatic dehydrator or desalter vessel through use of a low voltage electrostatic interface emulsion treatment system inside the vessel
US-10112850-B2 · Oct 30, 2018 · US
Electrochemical descaling by pulsed signal reversal
US-10077907-B2 · Sep 18, 2018 · US
High concentration bleach generator apparatus, system and method of use
US-10077197-B2 · Sep 18, 2018 · US
Chlorination-assisted coagulation processes for water purification
US-2018230026-A1 · Aug 16, 2018 · US
System and method for treating water systems with high voltage discharge and ozone
US-10023478-B2 · Jul 17, 2018 · US
System and Method for Treating Water Systems with High Voltage Discharge and Ozone
US-2018155220-A1 · Jun 7, 2018 · US
Electrolyzed water generator
US-2018141833-A1 · May 24, 2018 · US
Electrodialysis
US-9969628-B2 · May 15, 2018 · US
Water treatment device and humidification device
US-9950935-B2 · Apr 24, 2018 · US
Apparatus and method for water treatment using in-situ activation of manganese dioxide catalyst
US-9938168-B2 · Apr 10, 2018 · US
System and method for treating water systems with high voltage discharge and ozone
US-9932252-B2 · Apr 3, 2018 · US
Irrigation system
US-9926635-B2 · Mar 27, 2018 · US
Electrosorption purification system with battery driven regeneration
US-2018065870-A1 · Mar 8, 2018 · US
High Concentration Bleach Generator Apparatus, System and Method of Use
US-2018065868-A1 · Mar 8, 2018 · US
Detection and removal of selenate from aqueous solution
US-2018057371-A1 · Mar 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2201/46135?
- CPC C02F2201/46135 is the Cooperative Patent Classification code for “Voltage.”
- How many patents are filed under CPC C02F2201/46135 (Voltage)?
- Our database includes 228 publications tagged with this CPC code.
- Is patent activity under CPC C02F2201/46135 growing?
- Publication counts under this code: 26 in 2024 vs 14 in 2025 (latest complete years).