Process for the preparation of glycols
US-2018362424-A1 · Dec 20, 2018 · US
Chromium
Chromium · 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 | C07C2523/26 |
| Official title | Chromium |
| Display label | Chromium |
| Total patents | 253 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 17 |
| 2017 | 20 |
| 2018 | 27 |
| 2019 | 27 |
| 2020 | 35 |
| 2021 | 36 |
| 2022 | 17 |
| 2023 | 17 |
| 2024 | 19 |
| 2025 | 18 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process to convert synthesis gas to olefins over a bifunctional chromium oxide/zinc oxide-sapo-34 catalyst
US-2018305272-A1 · Oct 25, 2018 · US
Oxidative dehydrogenation of ethane to ethylene and preparation of multimetallic mixed oxide catalyst for such process
US-10058850-B2 · Aug 28, 2018 · US
Process for the co-production of 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene
US-2018208528-A1 · Jul 26, 2018 · US
Catalyst bed system for an endothermic catalytic dehydrogenation process and an endothermic dehydrogenation process
US-9926241-B2 · Mar 27, 2018 · US
Process for enhancing the performance of the dehydrogenation of alkanes
US-2017369399-A1 · Dec 28, 2017 · US
Diesel and turbine fuels from ethanol
US-9840676-B1 · Dec 12, 2017 · US
Endothermic Gas Phase Catalytic Dehydrogenation Process
US-2017320795-A1 · Nov 9, 2017 · US
Conversion of methane and ethane to syngas and ethylene
US-2017313584-A1 · Nov 2, 2017 · US
Ligand compound, organic chromium compound, catalyst system for oligomerization of olefins, and method for oligomerizing olefins using the same
US-2017312738-A1 · Nov 2, 2017 · US
Sulfur as a Selective Oxidant in Oxidative Hydrocarbon Processing Over Oxide/Chalcogenide Catalysts
US-2017305813-A1 · Oct 26, 2017 · US
Deactivator and method for decreasing by-products in olefin oligomerization using the same
US-2017305811-A1 · Oct 26, 2017 · US
Embedded alkane dehydrogenation systems and processes
US-2017297979-A1 · Oct 19, 2017 · US
Process for producing 1,3-butadiene from a feedstock comprising ethanol
US-9776933-B2 · Oct 3, 2017 · US
Systems and methods for dehydrogenation of alkanes
US-2017275219-A1 · Sep 28, 2017 · US
Method for oligomerizing olefin (as amended)
US-2017267603-A1 · Sep 21, 2017 · US
Process for the manufacture of alcohol and/or ketone
US-2017266651-A1 · Sep 21, 2017 · US
Concurrent reduction for improving the performance of the dehydrogenation of alkanes
US-2017267607-A1 · Sep 21, 2017 · US
Premixer, radially fixed bed reactor, reaction system for oxidative dehydrogenation
US-9718745-B2 · Aug 1, 2017 · US
Conversion of carbon monoxide, carbon dioxide, or a combination thereof over hybrid catalyst
US-2017210679-A1 · Jul 27, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C2523/26?
- CPC C07C2523/26 is the Cooperative Patent Classification code for “Chromium.”
- How many patents are filed under CPC C07C2523/26 (Chromium)?
- Our database includes 253 publications tagged with this CPC code.
- Is patent activity under CPC C07C2523/26 growing?
- Publication counts under this code: 19 in 2024 vs 18 in 2025 (latest complete years).