Electrolysis cell unit, electrolysis cell device, hydrocarbon production system, and production method and use method of electrolysis cell unit
US-12529151-B2 · Jan 20, 2026 · US
Chromium, molybdenum or tungsten
Chromium, molybdenum or tungsten · 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 | C07C2523/652 |
| 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 | 7 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processes for producing an ether
US-12522551-B2 · Jan 13, 2026 · US
Methods for making light olefins by dehydrogenation using catalysts that include chromium
US-2025382246-A1 · Dec 18, 2025 · US
Methods of making light olefins that include modifying catalysts
US-2025368901-A1 · Dec 4, 2025 · US
Process and system for producing a product hydrocarbon
US-12454500-B2 · Oct 28, 2025 · US
Supported catalyst for butane hydrogenolyis, method of producing the supported catalyst and method to produce ethane
US-12415175-B2 · Sep 16, 2025 · US
Process for producing renewable mono-methyl alkylbenzene products
US-2024400474-A1 · Dec 5, 2024 · US
Catalyst for dehydrogenation of light alkanes
US-12134084-B2 · Nov 5, 2024 · US
Single-step catalytic process for the production of alkylated aromatics using co2
US-2024317656-A1 · Sep 26, 2024 · US
Process and System for Producing a Product Hydrocarbon
US-2024150262-A1 · May 9, 2024 · US
Processes for producing an ether
US-2023265032-A1 · Aug 24, 2023 · US
Supported catalyst for butane hydrogenolyis, method of producing the supported catalyst and method to produce ethane
US-2023226522-A1 · Jul 20, 2023 · US
Electrolysis Cell Unit, Electrolysis Cell Device, Hydrocarbon Production System, and Production Method and Use Method of Electrolysis Cell Unit
US-2023160079-A1 · May 25, 2023 · US
Hydrocarbon Production System
US-2023149889-A1 · May 18, 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
Methods and systems for paraffin isomerization optimization
US-2022403258-A1 · Dec 22, 2022 · US
Alkane oxidative dehydrogenation (ODH)
US-11401220-B2 · Aug 2, 2022 · US
Catalyst for dehydrogenation of light alkanes
US-2022111359-A1 · Apr 14, 2022 · US
Catalyst systems that include metal co-catalysts for the production of propylene
US-11242300-B2 · Feb 8, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C2523/652?
- CPC C07C2523/652 is the Cooperative Patent Classification code for “Chromium, molybdenum or tungsten.”
- How many patents are filed under CPC C07C2523/652 (Chromium, molybdenum or tungsten)?
- Our database includes 49 publications tagged with this CPC code.
- Is patent activity under CPC C07C2523/652 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).