Vanadium oxide for infrared coatings and methods thereof
US-10160660-B1 · Dec 25, 2018 · US
Oxides
Oxides · 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 | C01G31/02 |
| Official title | Oxides |
| Display label | Oxides |
| Total patents | 220 |
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 | 7 |
| 2017 | 22 |
| 2018 | 35 |
| 2019 | 32 |
| 2020 | 29 |
| 2021 | 22 |
| 2022 | 9 |
| 2023 | 11 |
| 2024 | 18 |
| 2025 | 16 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Catalyst arrangement with optimized void fraction for the production of phthalic acid anhydride
US-10155713-B2 · Dec 18, 2018 · US
Nanofibers electrode and supercapacitors
US-10141123-B2 · Nov 27, 2018 · US
System and method for purifying and preparing high-purity vanadium pentoxide powder
US-10125024-B2 · Nov 13, 2018 · US
Vanadium recovery method
US-2018297856-A1 · Oct 18, 2018 · US
System and method for producing high-purity vanadium pentoxide powder
US-10099939-B2 · Oct 16, 2018 · US
System and method for preparing high-purity vanadium pentoxide powder
US-10053371-B2 · Aug 21, 2018 · US
Nanofibers electrode and supercapacitors
US-2018174767-A1 · Jun 21, 2018 · US
Polycrystalline vanadium oxide nanosheets
US-9997778-B2 · Jun 12, 2018 · US
Production of ethylene with nanowire catalysts
US-2018117579-A1 · May 3, 2018 · US
Method for processing vanadium-titanium magnetite finished ores by using wet process
US-9896742-B2 · Feb 20, 2018 · US
System and Method for Preparing High-Purity Vanadium Pentoxide Powder
US-2018022616-A1 · Jan 25, 2018 · US
Ceramic material
US-9868672-B2 · Jan 16, 2018 · US
System and method for purifying and preparing high-purity vanadium pentoxide powder
US-2018009673-A1 · Jan 11, 2018 · US
A metal oxide nanostructured material and an electrochemical cell comprising the same
US-2018005771-A1 · Jan 4, 2018 · US
System and method for regeneration and recirculation of a reducing agent using highly exothermic reactions induced by mixed industrial slags
US-9840756-B1 · Dec 12, 2017 · US
Vanadium dioxide
US-2017349495-A1 · Dec 7, 2017 · US
Metastable vanadium oxide cathode materials for rechargeable magnesium battery
US-9819021-B2 · Nov 14, 2017 · US
Catalyst Arrangement With Optimized Void Fraction For The Production Of Phthalic Acid Anhydride
US-2017320803-A1 · Nov 9, 2017 · US
Vanadium oxide film and process for producing same
US-2017313595-A1 · Nov 2, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01G31/02?
- CPC C01G31/02 is the Cooperative Patent Classification code for “Oxides.”
- How many patents are filed under CPC C01G31/02 (Oxides)?
- Our database includes 220 publications tagged with this CPC code.
- Is patent activity under CPC C01G31/02 growing?
- Publication counts under this code: 18 in 2024 vs 16 in 2025 (latest complete years).