Method for producing catalyst for olefin polymerization
US-12331138-B2 · Jun 17, 2025 · US
and metals of C08F4/64 or compounds thereof
and metals of C08F4/64 or compounds thereof · 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 | C08F4/6557 |
| Official title | {and metals of C08F4/64 or compounds thereof} |
| Display label | and metals of C08F4/64 or compounds thereof |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ziegler-Natta catalyst with an electron donor compound for increasing polymer molecular weight
US-11939417-B2 · Mar 26, 2024 · US
Cable jacket composition
US-11591455-B2 · Feb 28, 2023 · US
Ziegler-natta catalyst with an electron donor compound for increasing polymer molecular weight
US-2021221924-A1 · Jul 22, 2021 · US
Cast films, and articles made therefrom
US-10870714-B2 · Dec 22, 2020 · US
Ziegler-natta catalyst composition with controlled morphology
US-10711077-B2 · Jul 14, 2020 · US
Chlorine-resistant polyethylene compound and articles made therefrom
US-10584823-B2 · Mar 10, 2020 · US
Cable jacket composition
US-2020071508-A1 · Mar 5, 2020 · US
Process for transitioning between incompatible catalysts
US-10494454-B2 · Dec 3, 2019 · US
Solid catalyst for the (co)polymerisation of α-olefins and process for the preparation thereof
US-10486144-B2 · Nov 26, 2019 · US
Formation of Ziegler-Natta catalyst using non-blended components
US-10351640-B2 · Jul 16, 2019 · US
Ziegler-natta catalysts doped with non-Group IV metal chlorides
US-10294311-B2 · May 21, 2019 · US
Cast films, and articles made therefrom
US-2019002602-A1 · Jan 3, 2019 · US
Ziegler-natta catalysts doped with non-group iv metal chlorides
US-2018265603-A1 · Sep 20, 2018 · US
Solid catalyst component, catalyst comprising said solid component, and process for the (co)polymerization of α-olefins
US-9944726-B2 · Apr 17, 2018 · US
Catalyst system for polymerization of an olefin
US-9944731-B2 · Apr 17, 2018 · US
Ziegler-Natta catalysts doped with non-group IV metal chlorides
US-9944724-B2 · Apr 17, 2018 · US
Procatalyst for polymerization of olefins
US-9868799-B2 · Jan 16, 2018 · US
Method for preparing high activity ethylene polymerization catalyst
US-2017267791-A1 · Sep 21, 2017 · US
Solid catalyst for the (co)polymerisation of alpha-olefins and process for the preparation thereof
US-2017216825-A1 · Aug 3, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F4/6557?
- CPC C08F4/6557 is the Cooperative Patent Classification code for “and metals of C08F4/64 or compounds thereof.”
- How many patents are filed under CPC C08F4/6557 (and metals of C08F4/64 or compounds thereof)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC C08F4/6557 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).