Electrolyte membrane for lithium-air battery, method of manufacturing same and lithium-air battery comprising same
US-2021376424-A1 · Dec 2, 2021 · US
followed by reduction of the catalyst salt precursor
followed by reduction of the catalyst salt precursor · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M4/885 |
| Official title | {followed by reduction of the catalyst salt precursor} |
| Display label | followed by reduction of the catalyst salt precursor |
| Total patents | 96 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 7 |
| 2019 | 6 |
| 2020 | 8 |
| 2021 | 20 |
| 2022 | 9 |
| 2023 | 11 |
| 2024 | 7 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing electrode catalyst, and electrode catalyst
US-11189841-B2 · Nov 30, 2021 · US
Anode catalyst layer for fuel cell and fuel cell using same
US-2021351419-A1 · Nov 11, 2021 · US
Anode catalyst layer for fuel cell and fuel cell using same
US-2021336276-A1 · Oct 28, 2021 · US
Anode catalyst layer for fuel cell and fuel cell using same
US-2021328231-A1 · Oct 21, 2021 · US
Gas diffusion electrode and fuel cell comprising such a gas diffusion electrode
US-2021313590-A1 · Oct 7, 2021 · US
Method for producing metal nanoparticles, method for producing membrane electrode assembly, and method for producing polymer electrolyte fuel cell
US-2021305585-A1 · Sep 30, 2021 · US
Process for producing a catalyst comprising an intermetallic compound and a catalyst produced by the process
US-2021275993-A1 · Sep 9, 2021 · US
Chemically resistant, oxidic electrocatalyst for oxygen evolution during alkaline water electrolysis
US-11111587-B2 · Sep 7, 2021 · US
Electrocatalyst
US-2021234177-A1 · Jul 29, 2021 · US
Method of manufacturing a metal-air cell
US-11050063-B2 · Jun 29, 2021 · US
Catalyst layer for fuel cell
US-2021167401-A1 · Jun 3, 2021 · US
Core-shell structure type nanosheet
US-10985382-B2 · Apr 20, 2021 · US
Positive electrode for zn-br battery (zbb) and method of manufacturing the same
US-2021066719-A1 · Mar 4, 2021 · US
Electrode catalyst
US-2021057758-A1 · Feb 25, 2021 · US
Nanocatalyst suitable for an anode of a solid oxide fuel cell
US-10923733-B2 · Feb 16, 2021 · US
Catalyst
US-2021020953-A1 · Jan 21, 2021 · US
Proton conductor, proton-conducting cell structure, water vapor electrolysis cell, and method for producing hydrogen electrode-solid electrolyte layer complex
US-2021005916-A1 · Jan 7, 2021 · US
Method for preparing a carbon-supported, platinum-cobalt alloy, nanoparticle catalyst
US-10854886-B2 · Dec 1, 2020 · US
Catalyst
US-10833334-B2 · Nov 10, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M4/885?
- CPC H01M4/885 is the Cooperative Patent Classification code for “followed by reduction of the catalyst salt precursor.”
- How many patents are filed under CPC H01M4/885 (followed by reduction of the catalyst salt precursor)?
- Our database includes 96 publications tagged with this CPC code.
- Is patent activity under CPC H01M4/885 growing?
- Publication counts under this code: 7 in 2024 vs 6 in 2025 (latest complete years).