Methods for producing alpha-keto acid and pyruvic acid
US-2023420690-A1 · Dec 28, 2023 · US
Other direct alcohol fuel cells [DAFC]
Other direct alcohol fuel cells [DAFC] · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M8/1013 |
| Official title | {Other direct alcohol fuel cells [DAFC]} |
| Display label | Other direct alcohol fuel cells [DAFC] |
| Total patents | 67 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 13 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 5 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel cell system
US-11804610-B2 · Oct 31, 2023 · US
Methods for producing alpha-keto acid and pyruvic acid
US-11784319-B2 · Oct 10, 2023 · US
Direct isopropanol fuel cell
US-11677090-B2 · Jun 13, 2023 · US
Vapor-fed rechargeable direct liquid hydrogen carrier fuel cell
US-2023127594-A1 · Apr 27, 2023 · US
Polymer electrolyte membrane for medium and high temperature, preparation method thereof and high temperature polymer electrolyte membrane fuel cell comprising the same
US-11569523-B2 · Jan 31, 2023 · US
Electrochemical inert gas and power generating system and method
US-11530048-B2 · Dec 20, 2022 · US
Fuel cell system
US-2022393200-A1 · Dec 8, 2022 · US
Electrochemical inert gas and power generating system and method
US-2022355947-A1 · Nov 10, 2022 · US
Fuel cell having corrugated membrane electrode assembly
US-11380926-B2 · Jul 5, 2022 · US
Fuel cell and fuel cell system
US-2022181662-A1 · Jun 9, 2022 · US
Multi-layered metal-carbon materials-based nanoarchitectures
US-11344873-B2 · May 31, 2022 · US
A direct alcohol fuel cell
US-2022052355-A1 · Feb 17, 2022 · US
A direct alcohol fuel cell
US-2022029187-A1 · Jan 27, 2022 · US
Direct Isopropanol Fuel Cell
US-2021376365-A1 · Dec 2, 2021 · US
Direct isopropanol fuel cell
US-11121391-B2 · Sep 14, 2021 · US
Polymer electrolyte membrane for medium and high temperature, preparation method thereof and high temperature polymer electrolyte membrane fuel cell comprising the same
US-2021119237-A1 · Apr 22, 2021 · US
Electrode catalyst
US-2021057758-A1 · Feb 25, 2021 · US
Fuel cell having corrugated membrane electrode assembly
US-2021050612-A1 · Feb 18, 2021 · US
Electrochemical inert gas and power generating system and method
US-2020317362-A1 · Oct 8, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M8/1013?
- CPC H01M8/1013 is the Cooperative Patent Classification code for “Other direct alcohol fuel cells [DAFC].”
- How many patents are filed under CPC H01M8/1013 (Other direct alcohol fuel cells [DAFC])?
- Our database includes 67 publications tagged with this CPC code.
- Is patent activity under CPC H01M8/1013 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).