Conducting metal oxide and metal nitride nanoparticles
US-9850140-B2 · Dec 26, 2017 · US
Compounds of niobium
Compounds of niobium · 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 | C01G33/00 |
| Official title | Compounds of niobium |
| Display label | Compounds of niobium |
| Total patents | 369 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 25 |
| 2016 | 28 |
| 2017 | 28 |
| 2018 | 28 |
| 2019 | 37 |
| 2020 | 33 |
| 2021 | 38 |
| 2022 | 40 |
| 2023 | 36 |
| 2024 | 38 |
| 2025 | 34 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Active substance
US-9774032-B2 · Sep 26, 2017 · US
Chiral nematic nanocrystalline metal oxides
US-9758386-B2 · Sep 12, 2017 · US
Active material
US-9698422-B2 · Jul 4, 2017 · US
Piezoelectric film, production method thereof, piezoelectric element, and liquid discharge apparatus
US-2017157931-A1 · Jun 8, 2017 · US
Method for manufacturing active material composite powder
US-2017077489-A1 · Mar 16, 2017 · US
Method for preparing a titanium and niobium mixed oxide by solvothermal treatment; electrode and lithium accumulator comprising said mixed oxide
US-9559357-B2 · Jan 31, 2017 · US
Battery active material, nonaqueous electrolyte battery and battery pack
US-9515319-B2 · Dec 6, 2016 · US
Semiconductor ferroelectric compositions and their use in photovoltaic devices
US-9484475-B2 · Nov 1, 2016 · US
Photocatalyst, preparation method thereof, and photocatalyst apparatus
US-9480972-B2 · Nov 1, 2016 · US
Negative electrode for power storage device, method for forming the same, and power storage device
US-2016315309-A1 · Oct 27, 2016 · US
Amorphous (Lithium) Sulfide or (Lithium) Titanium Niobium Sulfide
US-2016308210-A1 · Oct 20, 2016 · US
Composition based on oxides of zirconium, cerium, niobium and tin, preparation processes and use in catalysis
US-2016279608-A1 · Sep 29, 2016 · US
Electrocatalyst layer, membrane electrode assembly and fuel cell
US-2016276675-A1 · Sep 22, 2016 · US
Active material, nonaqueous electrolyte battery, battery pack and battery module
US-2016276662-A1 · Sep 22, 2016 · US
Method for preparing a lead-free piezoelectric thin film
US-9450175-B2 · Sep 20, 2016 · US
Group 5 transition metal-containing compounds for vapor deposition of group 5 transition metal-containing films
US-2016251756-A1 · Sep 1, 2016 · US
Negative electrode for power storage device, method for forming the same, and power storage device
US-9384904-B2 · Jul 5, 2016 · US
Articles for high temperature service and method for making
US-2016177746-A1 · Jun 23, 2016 · US
Mesoporous materials and processes for preparation thereof
US-2016151768-A1 · Jun 2, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01G33/00?
- CPC C01G33/00 is the Cooperative Patent Classification code for “Compounds of niobium.”
- How many patents are filed under CPC C01G33/00 (Compounds of niobium)?
- Our database includes 369 publications tagged with this CPC code.
- Is patent activity under CPC C01G33/00 growing?
- Publication counts under this code: 38 in 2024 vs 34 in 2025 (latest complete years).