Cathode catalysts for fuel cells
US-9515323-B2 · Dec 6, 2016 · US
of the iron group metals or copper
of the iron group metals or copper · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01J23/70 |
| Official title | of the iron group metals or copper |
| Display label | of the iron group metals or copper |
| Total patents | 305 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 39 |
| 2016 | 32 |
| 2017 | 32 |
| 2018 | 58 |
| 2019 | 26 |
| 2020 | 24 |
| 2021 | 24 |
| 2022 | 23 |
| 2023 | 20 |
| 2024 | 10 |
| 2025 | 13 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Bimetallic catalyst for high nitrate nitrogen reduction and selectivity and manufacturing methods thereof
US-2016347633-A1 · Dec 1, 2016 · US
Composite body in which first metal-containing particles and second metal-containing particles are supported on carbon material or connected by carbon material, and method for producing same
US-9498774-B2 · Nov 22, 2016 · US
Process for the conversion of fatty acids and derivatives thereof
US-9487711-B2 · Nov 8, 2016 · US
Catalyst system based on spherical activated carbon as a carrier and use thereof
US-2016296911-A1 · Oct 13, 2016 · US
Titanium-oxide catalyst and method of producing the same
US-2016271588-A1 · Sep 22, 2016 · US
Exhaust gas purifying catalyst
US-9421535-B2 · Aug 23, 2016 · US
Large-area carbon nanomesh from polymer and method of preparing the same
US-9409781-B2 · Aug 9, 2016 · US
Catalysts and process for liquid hydrocarbon fuel production
US-9404048-B2 · Aug 2, 2016 · US
Non-pgm cathode catalysts for fuel cell application derived from heat treated heteroatomic amines precursors
US-2016181621-A1 · Jun 23, 2016 · US
Catalyst manufacturing method
US-2016136634-A1 · May 19, 2016 · US
Metal loaded catalyst and preparation method thereof
US-2016136635-A1 · May 19, 2016 · US
Processes for the preparation of mesoporous metal oxides
US-2016121303-A1 · May 5, 2016 · US
Ceria-supported metal catalysts for the selective reduction of NOx
US-9283548-B2 · Mar 15, 2016 · US
Metal utilization in supported, metal-containing catalysts
US-2016068555-A1 · Mar 10, 2016 · US
Catalyst manufacturing method
US-9278338-B2 · Mar 8, 2016 · US
Nano-catalyst filter and production method for same
US-2016060782-A1 · Mar 3, 2016 · US
Production of Xylenes From Syngas
US-2016024393-A1 · Jan 28, 2016 · US
Stable support for Fischer-Tropsch catalyst
US-9233358-B1 · Jan 12, 2016 · US
Stable support for Fischer-Tropsch catalyst
US-9233360-B1 · Jan 12, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J23/70?
- CPC B01J23/70 is the Cooperative Patent Classification code for “of the iron group metals or copper.”
- How many patents are filed under CPC B01J23/70 (of the iron group metals or copper)?
- Our database includes 305 publications tagged with this CPC code.
- Is patent activity under CPC B01J23/70 growing?
- Publication counts under this code: 10 in 2024 vs 13 in 2025 (latest complete years).