Photocatalyst complex
US-2016375432-A1 · Dec 29, 2016 · US
Vanadium, niobium or tantalum
Vanadium, niobium or tantalum · 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 | B01J23/20 |
| Official title | Vanadium, niobium or tantalum |
| Display label | Vanadium, niobium or tantalum |
| Total patents | 301 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 34 |
| 2016 | 32 |
| 2017 | 37 |
| 2018 | 39 |
| 2019 | 31 |
| 2020 | 30 |
| 2021 | 28 |
| 2022 | 18 |
| 2023 | 18 |
| 2024 | 15 |
| 2025 | 15 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Nb-Zr-Al-Mixed Oxide Supports for Rh Layer use in TWC Converters
US-2016354765-A1 · Dec 8, 2016 · US
Composite Catalyst for the Photocatalytic Isomerisation of Norbornadiene to Prepare Quadricyclane and Process for Making the Catalyst
US-2016339415-A1 · Nov 24, 2016 · US
Thermally stable compositions of OSM free of rare earth metals
US-9486784-B2 · Nov 8, 2016 · US
Rhodium-iron catalysts
US-9475004-B2 · Oct 25, 2016 · US
Three-way catalyst systems including Fe-activated Rh and Ba-Pd material compositions
US-9475005-B2 · Oct 25, 2016 · US
Method for effecting a photocatalytic or photoelectrocatalytic reaction
US-9469906-B2 · Oct 18, 2016 · US
Catalyst and method for the production of chlorine by gas phase oxidation
US-9468913-B2 · Oct 18, 2016 · US
Oxide catalyst and method for producing same, and method for producing unsaturated nitrile
US-2016297753-A1 · Oct 13, 2016 · US
Catalysts and Related Methods for Photocatalytic Production of H2O2 and Thermocatalytic Reactant Oxidation
US-2016272495-A1 · Sep 22, 2016 · US
Method for preparing acrolein from glycerol or glycerine
US-9447009-B2 · Sep 20, 2016 · US
Bi-Component Catalyst And Method For Dehydrating Lactic Acid To Acrylic Acid
US-2016264505-A1 · Sep 15, 2016 · US
Pentenenitrile isomerization
US-9440912-B2 · Sep 13, 2016 · US
Bimetallic synergized PGM catalyst systems for TWC application
US-9427730-B2 · Aug 30, 2016 · US
Photocatalyst for water splitting, production method for same, and photoelectrode for water splitting
US-2016193596-A1 · Jul 7, 2016 · US
Process for producing ethanol using hydrogenation catalysts
US-9381500-B2 · Jul 5, 2016 · US
Synergized PGM Catalyst Systems Including Rhodium for TWC Application
US-2016167024-A1 · Jun 16, 2016 · US
Mesoporous materials and processes for preparation thereof
US-2016151768-A1 · Jun 2, 2016 · US
Mesoporous materials and processes for preparation thereof
US-2016151767-A1 · Jun 2, 2016 · US
Bimetallic Synergized PGM Catalyst Systems for TWC Application
US-2016136621-A1 · May 19, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J23/20?
- CPC B01J23/20 is the Cooperative Patent Classification code for “Vanadium, niobium or tantalum.”
- How many patents are filed under CPC B01J23/20 (Vanadium, niobium or tantalum)?
- Our database includes 301 publications tagged with this CPC code.
- Is patent activity under CPC B01J23/20 growing?
- Publication counts under this code: 15 in 2024 vs 15 in 2025 (latest complete years).