Heterogeneous Ziegler-Natta catalysts with fluorided silica-coated alumina
US-9758599-B2 · Sep 12, 2017 · US
Metal oxides
Metal oxides · 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 | C08F4/025 |
| Official title | {Metal oxides} |
| Display label | Metal oxides |
| Total patents | 329 |
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 | 33 |
| 2017 | 26 |
| 2018 | 20 |
| 2019 | 35 |
| 2020 | 36 |
| 2021 | 22 |
| 2022 | 28 |
| 2023 | 33 |
| 2024 | 38 |
| 2025 | 23 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Supported metal oxide double active center polyethylene catalyst, process for preparing the same and use thereof
US-9725530-B2 · Aug 8, 2017 · US
Polyethylene composition for pipe and pipe coating applications
US-9527934-B2 · Dec 27, 2016 · US
Process to prepare aluminoxanes by reaction of alkylaluminum with allylic alcohols
US-9505788-B2 · Nov 29, 2016 · US
Spherical magnesium halide adduct, a catalyst component and a catalyst for olefin polymerization prepared therefrom
US-9499569-B2 · Nov 22, 2016 · US
Non-stretched polypropylene-based film
US-2016333125-A1 · Nov 17, 2016 · US
Methods for making catalyst compositions and polymer products produced therefrom
US-9487601-B2 · Nov 8, 2016 · US
Methods of Preparing a Catalyst
US-2016319052-A1 · Nov 3, 2016 · US
Boron-bridged bis-indenyl metallocene catalyst systems and polymers produced therefrom
US-9481750-B2 · Nov 1, 2016 · US
Modified catalyst supports
US-9475893-B2 · Oct 25, 2016 · US
Catalyst systems containing boron-bridged cyclopentadienyl-fluorenyl metallocene compounds with an alkenyl substituent
US-9469702-B2 · Oct 18, 2016 · US
Methods for controlling polymer properties
US-2016297907-A1 · Oct 13, 2016 · US
Synthesis of Aryl Coupled BIS Phenoxides and Their Use in Olefin Polymerization Catalyst Systems With Activator-Supports
US-2016289351-A1 · Oct 6, 2016 · US
Multistage process for producing polyethylene compositions
US-2016272799-A1 · Sep 22, 2016 · US
Process to Prepare Aluminoxanes by Reaction of Alkylaluminium With Allylic Alcohols
US-2016272658-A1 · Sep 22, 2016 · US
Catalyst component for olefin polymerization, catalyst for olefin polymerization, and process for producing olefin (co)polymer using the same
US-2016272736-A1 · Sep 22, 2016 · US
Preparation method of catalyst for polyolefin polymerization and preparation method of polyolefin
US-9447211-B2 · Sep 20, 2016 · US
Silica-Coated Alumina Activator-Supports For Metallocene Catalyst Compositions
US-2016222141-A1 · Aug 4, 2016 · US
Modified catalyst supports
US-9403920-B2 · Aug 2, 2016 · US
Synthesis of aryl coupled bis phenoxides and their use in olefin polymerization catalyst systems with activator-supports
US-9394387-B2 · Jul 19, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F4/025?
- CPC C08F4/025 is the Cooperative Patent Classification code for “Metal oxides.”
- How many patents are filed under CPC C08F4/025 (Metal oxides)?
- Our database includes 329 publications tagged with this CPC code.
- Is patent activity under CPC C08F4/025 growing?
- Publication counts under this code: 38 in 2024 vs 23 in 2025 (latest complete years).