Hydrothermal synthesis of the molybdenum dioxide nanoparticles directly onto a metal substrate
US-2020354229-A1 · Nov 12, 2020 · 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 | C01G39/02 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 132 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 11 |
| 2017 | 8 |
| 2018 | 11 |
| 2019 | 10 |
| 2020 | 14 |
| 2021 | 15 |
| 2022 | 15 |
| 2023 | 8 |
| 2024 | 14 |
| 2025 | 7 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Highly active trimetallic materials using short-chain alkyl quaternary ammonium compounds
US-10822247-B2 · Nov 3, 2020 · US
Preparation method of hexagonal molybdenum oxide nanorod
US-2020283306-A1 · Sep 10, 2020 · US
Method for preparing microstructure arrays on the surface of thin film material
US-2020086277-A1 · Mar 19, 2020 · US
Method for preparing molybdenum oxide nanoparticles
US-10479696-B2 · Nov 19, 2019 · US
Mixture of visible light-responsive photocatalytic titanium oxide fine particles, dispersion liquid thereof, method for producing dispersion liquid, photocatalyst thin film, and member having photocatalyst thin film on surface
US-2019217282-A1 · Jul 18, 2019 · US
Highly active quaternary metallic materials using short-chain alkyl quaternary ammonium compounds
US-2019185344-A1 · Jun 20, 2019 · US
Highly active trimetallic materials using short-chain alkyl quaternary ammonium compounds
US-2019185343-A1 · Jun 20, 2019 · US
Highly active multimetallic materials using short-chain alkyl quaternary ammonium compounds
US-2019185345-A1 · Jun 20, 2019 · US
Crystalline transition metal oxy-hydroxide molybdate
US-10322404-B2 · Jun 18, 2019 · US
Hollow fiber membrane modified with molybdenum trioxide nanoparticles
US-2019099719-A1 · Apr 4, 2019 · US
Annealing method and nitrogen-doped metal oxide structure
US-2019097227-A1 · Mar 28, 2019 · US
Method for preparing metal/molybdenum oxide nanoparticles
US-2019071320-A1 · Mar 7, 2019 · US
Process for producing a metal oxide powder
US-2019023583-A1 · Jan 24, 2019 · US
Nanofibers electrode and supercapacitors
US-10141123-B2 · Nov 27, 2018 · US
Preparation method for rod-shaped molybdenum oxide and preparation method for molybdenum oxide composite
US-10130937-B2 · Nov 20, 2018 · US
Preparation methods and uses of doped VIB group metal oxide nanoparticles or dispersions thereof
US-10120106-B2 · Nov 6, 2018 · US
Magnesium electrochemical cells
US-10090519-B2 · Oct 2, 2018 · US
Controlled microwave assisted synthesis of functionalized silica nanoparticles
US-2018257946-A1 · Sep 13, 2018 · US
Nanofibers electrode and supercapacitors
US-2018174767-A1 · Jun 21, 2018 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01G39/02?
- CPC C01G39/02 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C01G39/02 (Chemistry & Metallurgy)?
- Our database includes 132 publications tagged with this CPC code.
- Is patent activity under CPC C01G39/02 growing?
- Publication counts under this code: 14 in 2024 vs 7 in 2025 (latest complete years).