Electrolytic liquid production device
US-12473655-B2 · Nov 18, 2025 · US
Common duct cells
Common duct cells · 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 | C25B9/07 |
| Official title | Common duct cells |
| Display label | Common duct cells |
| Total patents | 30 |
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 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrolyzer with dynamic membrane
US-2025346505-A1 · Nov 13, 2025 · US
Electrolysis Reactor
US-2025341005-A1 · Nov 6, 2025 · US
Electrochemical breaking of C—C bonds
US-12442090-B2 · Oct 14, 2025 · US
Electrolytic solution generation device
US-2025283233-A1 · Sep 11, 2025 · US
Single-chamber microbial electrolysis cell system without ion exchange membrane and method for producing clean gas such as hydrogen and biogas using same
US-2025277175-A1 · Sep 4, 2025 · US
Electrolytic solution generation device
US-12385148-B2 · Aug 12, 2025 · US
Electrochemical reaction device, method for reducing carbon dioxide, and method for producing carbon compound
US-12338537-B2 · Jun 24, 2025 · US
Microfluidic process for the general electrochemical synthesis of geminal dipseudohalide or halide-pseudohalide compounds
US-12281398-B2 · Apr 22, 2025 · US
Electrochemical compressor
US-12203455-B2 · Jan 21, 2025 · US
Electrochemical compressor
US-12173699-B2 · Dec 24, 2024 · US
Distributor structure for a fuel cell or electrolyser
US-12080921-B2 · Sep 3, 2024 · US
Microfluidic Process for the General Electrochemical Synthesis of Geminal Dipseudohalide or Halide-Pseudohalide Compounds
US-2024218528-A1 · Jul 4, 2024 · US
Membrane-less electrolyzer with porous walls for high throughput and pure hydrogen production
US-2024102185-A1 · Mar 28, 2024 · US
Microfluidic process for the general electrochemical synthesis of geminal dipseudohalide or halide-pseudohalide compounds
US-11926911-B2 · Mar 12, 2024 · US
Backpressure regulation for membraneless hydrogen electrolyzer
US-2023295821-A1 · Sep 21, 2023 · US
Electrochemical breaking of c-c bonds
US-2023106006-A1 · Apr 6, 2023 · US
Electrolytic liquid production device
US-2023034950-A1 · Feb 2, 2023 · US
Electrolytic solution generation device
US-2022396506-A1 · Dec 15, 2022 · US
Membrane-less reactor design and process for biotransformation of carbon dioxide
US-11519084-B2 · Dec 6, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25B9/07?
- CPC C25B9/07 is the Cooperative Patent Classification code for “Common duct cells.”
- How many patents are filed under CPC C25B9/07 (Common duct cells)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC C25B9/07 growing?
- Publication counts under this code: 5 in 2024 vs 10 in 2025 (latest complete years).