Process for the preparation of alkoxylated 2,5-dihydrofuran
US-2025353823-A1 · Nov 20, 2025 · US
Single electrolytic cells with circulation of an electrolyte
Single electrolytic cells with circulation of an electrolyte · 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 | C25B9/13 |
| Official title | Single electrolytic cells with circulation of an electrolyte |
| Display label | Single electrolytic cells with circulation of an electrolyte |
| Total patents | 91 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 9 |
| 2022 | 14 |
| 2023 | 10 |
| 2024 | 13 |
| 2025 | 33 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process and system for the electrochemical reduction of oxalic acid
US-2025207270-A1 · Jun 26, 2025 · US
Systems for generating hydrogen
US-2025179673-A1 · Jun 5, 2025 · US
Synthetic method and synthetic system
US-12320023-B2 · Jun 3, 2025 · US
Hydrogen production from air
US-2025092532-A1 · Mar 20, 2025 · US
Electrolysis device, electrolysis system, and electrolysis method for alternating current induction power supply
US-2024425999-A1 · Dec 26, 2024 · US
Optimised bio-electrochemical reactor, in particular for degradation of the chemical oxygen demand of an effluent
US-2024417294-A1 · Dec 19, 2024 · US
Method and apparatus for making carbon nanomaterials and methods using lithium-free electrolytes
US-12163234-B2 · Dec 10, 2024 · US
Method for producing alkali metal alcoholates in an electrolysis cell
US-2024392451-A1 · Nov 28, 2024 · US
Method for producing alkali metal alcoholates in an electrolysis cell
US-2024384426-A1 · Nov 21, 2024 · US
Gas generator
US-12146228-B2 · Nov 19, 2024 · US
Systems for generating hydrogen
US-2024376610-A1 · Nov 14, 2024 · US
Photoelectrochemical production of hydrogen from hydrogen sulfide
US-2024352592-A1 · Oct 24, 2024 · US
Lithium isotope enrichment device, multi-stage lithium isotope enrichment device, and lithium isotope enrichment method
US-2024335790-A1 · Oct 10, 2024 · US
Three-chamber electrolytic cell for the production of alkali metal alkoxides
US-2024295034-A1 · Sep 5, 2024 · US
Lithium ion battery materials recycling method
US-12057559-B2 · Aug 6, 2024 · US
Membrane-less electrolyzer with porous walls for high throughput and pure hydrogen production
US-2024102185-A1 · Mar 28, 2024 · US
Anode and/or cathode pan assemblies in an electrochemical cell, and methods to use and manufacture thereof
US-2024055636-A1 · Feb 15, 2024 · US
Process and system for the electrochemical reduction of oxalic acid
US-2023416930-A1 · Dec 28, 2023 · US
Dual-membrane on-line generator for acid or alkali solution
US-11827990-B2 · Nov 28, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25B9/13?
- CPC C25B9/13 is the Cooperative Patent Classification code for “Single electrolytic cells with circulation of an electrolyte.”
- How many patents are filed under CPC C25B9/13 (Single electrolytic cells with circulation of an electrolyte)?
- Our database includes 91 publications tagged with this CPC code.
- Is patent activity under CPC C25B9/13 growing?
- Publication counts under this code: 13 in 2024 vs 33 in 2025 (latest complete years).