Electrolysis electrode
US-2018354821-A1 · Dec 13, 2018 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C25B11/0447 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 151 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 28 |
| 2017 | 16 |
| 2018 | 21 |
| 2019 | 32 |
| 2020 | 33 |
| 2021 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydrogen evolution cell having a cathode pocket
US-10087534-B2 · Oct 2, 2018 · US
Electrolysis electrode
US-10059607-B2 · Aug 28, 2018 · US
Reduction catalyst, and chemical reactor, reduction method and reduction product-producing system employing the catalyst
US-2018209053-A1 · Jul 26, 2018 · US
Electrocatalyst for hydrogen evolution and oxidation reactions
US-9994961-B2 · Jun 12, 2018 · US
Passivating window and capping layer for photoelectrochemical cells
US-2018051379-A1 · Feb 22, 2018 · US
Method for manufacturing electrode for hydrogen production using tungsten carbide nanoflake and electrode for hydrogen production manufactured thereby
US-2018038003-A1 · Feb 8, 2018 · US
Method for manufacturing 2,3-butanediol
US-2017369406-A1 · Dec 28, 2017 · US
Electrochemical catalyst for conversion of co2 to ethanol
US-2017314148-A1 · Nov 2, 2017 · US
Iridium complexes for electrocatalysis
US-9790605-B2 · Oct 17, 2017 · US
Oxygen-consuming electrode which contains carbon nanotubes and method for producing same
US-2017283964-A1 · Oct 5, 2017 · US
Non-precious metal based water electrolysis catalyst for oxygen evolution at anode and hydrogen evolution at cathode and preparation method of the same
US-9751078-B2 · Sep 5, 2017 · US
Catalytic assembly
US-2017226648-A1 · Aug 10, 2017 · US
Electrode, membrane electrode assembly, electrochemical cell, and stack
US-2017183788-A1 · Jun 29, 2017 · US
Layered alkali iridate, layered iridic acid, and iridium oxide nanosheet
US-9689080-B2 · Jun 27, 2017 · US
Bipolar alkaline water electrolysis unit and electrolytic cell
US-9683300-B2 · Jun 20, 2017 · US
Water decomposition apparatus and water decomposition method
US-2017107631-A1 · Apr 20, 2017 · US
System and process for electrochemical conversion of carbon dioxide to carbon monoxide
US-9624589-B2 · Apr 18, 2017 · US
Method for growing niobium oxynitride layer
US-2017088975-A1 · Mar 30, 2017 · US
Method for reducing carbon dioxide
US-9598779-B2 · Mar 21, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25B11/0447?
- CPC C25B11/0447 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C25B11/0447 (Chemistry & Metallurgy)?
- Our database includes 151 publications tagged with this CPC code.
- Is patent activity under CPC C25B11/0447 growing?
- Publication counts under this code: 33 in 2020 vs 12 in 2021 (latest complete years).