Quenching device, hydrogen production device, hydrogen production method and reactor for photochemical reaction
US-2025281781-A1 · Sep 11, 2025 · US
Chromium, molybdenum or tungsten
Chromium, molybdenum or tungsten · 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 | B01J23/652 |
| Official title | Chromium, molybdenum or tungsten |
| Display label | Chromium, molybdenum or tungsten |
| Total patents | 49 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 7 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing ethyl acetate
US-2025002441-A1 · Jan 2, 2025 · US
Photocatalyst
US-12121885-B2 · Oct 22, 2024 · US
Photocatalysts and methods of making and using the same
US-2024149258-A1 · May 9, 2024 · US
Platinum-tungsten solid solution particles and catalyst containing same
US-2023226525-A1 · Jul 20, 2023 · US
Egg shell-type platinum-loaded alumina catalyst, method of producing same, and method of using same
US-2023148027-A1 · May 11, 2023 · US
Hydrocarbon Production System, and Production Method and Operation Method Thereof
US-2023114967-A1 · Apr 13, 2023 · US
Carbon nanotubes, method of manufacturing same, and positive electrode for primary battery comprising same
US-11511994-B2 · Nov 29, 2022 · US
Photocatalyst
US-2022161247-A1 · May 26, 2022 · US
Catalyst systems that include metal co-catalysts for the production of propylene
US-11242300-B2 · Feb 8, 2022 · US
Methods of producing hydrocracking catalyst
US-2022008908-A1 · Jan 13, 2022 · US
Carbon nanotubes, method of manufacturing same, and positive electrode for primary battery comprising same
US-2021139331-A1 · May 13, 2021 · US
Catalysts systems that include metal co-catalysts for the production of propylene
US-10961171-B2 · Mar 30, 2021 · US
Electrocatalysts, the preparation thereof, and using the same for ammonia synthesis
US-2021032116-A1 · Feb 4, 2021 · US
Catalyst systems that include metal co-catalysts for the production of propylene
US-2020115300-A1 · Apr 16, 2020 · US
Catalysts systems that include metal co-catalysts for the production of propylene
US-2020115298-A1 · Apr 16, 2020 · US
Catalyst to attain low sulfur gasoline
US-10596555-B2 · Mar 24, 2020 · US
Catalyst and process for nitric oxide reduction in a waste gas
US-10562011-B2 · Feb 18, 2020 · US
Method for the preparation of a catalysed monolith
US-10525503-B2 · Jan 7, 2020 · US
Catalyst for hydrogen peroxide decomposition, process for producing the same, and method for decomposing hydrogen peroxide using the catalyst
US-10441943-B2 · Oct 15, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J23/652?
- CPC B01J23/652 is the Cooperative Patent Classification code for “Chromium, molybdenum or tungsten.”
- How many patents are filed under CPC B01J23/652 (Chromium, molybdenum or tungsten)?
- Our database includes 49 publications tagged with this CPC code.
- Is patent activity under CPC B01J23/652 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).