Irrigation system
US-2017362722-A1 · Dec 21, 2017 · 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 | C25B1/10 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 316 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 26 |
| 2016 | 25 |
| 2017 | 43 |
| 2018 | 50 |
| 2019 | 74 |
| 2020 | 77 |
| 2021 | 21 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Nanoelectrodes for water splitting
US-2017342577-A1 · Nov 30, 2017 · US
Catalyst
US-2017244109-A1 · Aug 24, 2017 · US
Photochemical reaction device
US-9708717-B2 · Jul 18, 2017 · US
Gas diffusion layer, electrochemical cell having such a gas diffusion layer, and electrolyzer
US-2017191175-A1 · Jul 6, 2017 · US
Electrochemical cell having a cascade seal configuration and hydrogen reclamation
US-2017107633-A1 · Apr 20, 2017 · US
Fluid chamber device for a reaction unit of a redox device
US-9624585-B2 · Apr 18, 2017 · US
Water electrolysis method and water electrolysis device
US-2017101717-A1 · Apr 13, 2017 · US
Porous electrode for proton-exchange membrane
US-2017044678-A1 · Feb 16, 2017 · US
Photochemical reaction device
US-2016376712-A1 · Dec 29, 2016 · US
Oxidation electrode and photoelectrochemical device
US-2016376717-A1 · Dec 29, 2016 · US
Photo-electrochemical reaction device
US-2016369414-A1 · Dec 22, 2016 · US
Cell, cell stack device, module, and module housing device
US-2016372774-A1 · Dec 22, 2016 · US
Photoelectrochemical reaction device
US-2016362798-A1 · Dec 15, 2016 · US
Alkaline water electrolysis diaphragm, method of manufacturing same, and alkaline water electrolyzer
US-2016312371-A1 · Oct 27, 2016 · US
Artificial-photosynthesis array
US-2016281244-A1 · Sep 29, 2016 · US
Artificial-photosynthesis module
US-2016281242-A1 · Sep 29, 2016 · US
Hydrogen producing cell, hydrogen producing device, and energy system including the hydrogen producing device
US-9447509-B2 · Sep 20, 2016 · US
Novel Polymer Useful for an Ion Exchange Membrane
US-2016222177-A1 · Aug 4, 2016 · US
Water splitting method
US-2016222525-A1 · Aug 4, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25B1/10?
- CPC C25B1/10 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C25B1/10 (Chemistry & Metallurgy)?
- Our database includes 316 publications tagged with this CPC code.
- Is patent activity under CPC C25B1/10 growing?
- Publication counts under this code: 77 in 2020 vs 21 in 2021 (latest complete years).