Photocatalytic co2 reduction with binary catalyst-decorated nanostructures
US-2026054255-A1 · Feb 26, 2026 · US
Gold
Gold · 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 | C07C2523/52 |
| Official title | Gold |
| Display label | Gold |
| Total patents | 51 |
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 | 4 |
| 2016 | 5 |
| 2017 | 4 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 9 |
| 2022 | 1 |
| 2023 | 6 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Purification of an ethylenically unsaturated alcohol stream, preparation of an ethylenically unsaturated aldehyde, in particular prenal, and compounds derived therefrom
US-2025340502-A1 · Nov 6, 2025 · US
Method for producing olefin and olefination reaction catalyst
US-12410109-B2 · Sep 9, 2025 · US
Processes for Dehydrogenating Alkanes and Alkyl Aromatic Hydrocarbons
US-2024294446-A1 · Sep 5, 2024 · US
Gas-phase oxidative coupling of alcohols and amines using heterogeneous catalysts
US-2024158337-A1 · May 16, 2024 · US
Process to conduct an endothermic dehydrogenation and/or aromatisation reaction in a fluidized bed reactor
US-11840509-B2 · Dec 12, 2023 · US
Method for producing olefin and olefination reaction catalyst
US-2023339827-A1 · Oct 26, 2023 · US
Process to conduct an endothermic dehyrogenation and/or aromatisation reaction in a fluidized bed reactor
US-2023295062-A1 · Sep 21, 2023 · US
Methods of producing catalysts for vinyl acetate production
US-2023173466-A1 · Jun 8, 2023 · US
Method for oxidation of cycloalkanes
US-11572330-B2 · Feb 7, 2023 · US
Processes for preparing aldaric, aldonic, and uronic acids
US-2023002301-A1 · Jan 5, 2023 · US
Method for removing dienes from a material stream containing C3 to C5 hydrocarbons by selective hydrogenation
US-11384037-B2 · Jul 12, 2022 · US
Catalytic conversion of ethanol to 1-/2-butenes
US-11046623-B1 · Jun 29, 2021 · US
Method for removing dienes from a material stream containing c3 to c5 hydrocarbons by selective hydrogenation
US-2021179518-A1 · Jun 17, 2021 · US
Catalytic conversion of ethanol to 1-/2-butenes
US-2021171419-A1 · Jun 10, 2021 · US
Gold supported yttrium oxide nanorods and methods of use thereof
US-10987657-B1 · Apr 27, 2021 · US
Hydrocarbon oxidation
US-10934236-B2 · Mar 2, 2021 · US
Method for oxidation of cycloalkanes
US-2021040025-A1 · Feb 11, 2021 · US
Supported bimetallic core-shell structure catalyst and its preparation method
US-10913052-B1 · Feb 9, 2021 · US
Supported bimetallic core-shell structure catalyst and its preparation method
US-2021023536-A1 · Jan 28, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C2523/52?
- CPC C07C2523/52 is the Cooperative Patent Classification code for “Gold.”
- How many patents are filed under CPC C07C2523/52 (Gold)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC C07C2523/52 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).