Olefin polymer and method for producing olefin polymer
US-11912796-B2 · Feb 27, 2024 · US
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with metals or metal-containing compounds, not provided for in a single group of groups C08F4/653 - C08F4/657
with metals or metal-containing compounds, not provided for in a single group of groups C08F4/653 - C08F4/657 · 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 | C08F4/658 |
| Official title | with metals or metal-containing compounds, not provided for in a single group of groups C08F4/653 - C08F4/657 |
| Display label | with metals or metal-containing compounds, not provided for in a single group of groups C08F4/653 - C08F4/657 |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ultra-high molecular weight, ultra-fine particle size polyethylene, preparation method therefor and use thereof
US-11530281-B2 · Dec 20, 2022 · US
Method of preparing metallocene catalyst for polyolefin preparation
US-11077434-B2 · Aug 3, 2021 · US
Olefin polymer and method for producing olefin polymer
US-2021040245-A1 · Feb 11, 2021 · US
Multilayer stretch films and methods thereof
US-10857768-B2 · Dec 8, 2020 · US
Use of organosilane, in-reactor polyolefin alloy and preparation method thereof
US-10717801-B2 · Jul 21, 2020 · US
Method for producing solid catalyst component for α-olefin polymerization and method for producing α-olefin polymer using the same
US-10526427-B2 · Jan 7, 2020 · US
Olefin-polymerization solid catalytic component, production method for olefin-polymerization catalyst, and production method for olefin polymer
US-10472436-B2 · Nov 12, 2019 · US
Supported Ziegler Natta procatalyst for ethylene polymerisation
US-10457758-B2 · Oct 29, 2019 · US
Solid catalyst component for olefin polymerization, method for producing the same, olefin polymerization catalyst, and method for producing olefin polymer
US-10457755-B2 · Oct 29, 2019 · US
Method of preparing metallocene catalyst for polyolefin preparation
US-2019224661-A1 · Jul 25, 2019 · US
Ultra-high molecular weight, ultra-fine particle size polyethylene, preparation method therefor and use thereof
US-2019185596-A1 · Jun 20, 2019 · US
Method for producing solid catalyst component for alpha-olefin polymerization and method for producing alpha-olefin polymer using the same
US-2018362673-A1 · Dec 20, 2018 · US
Catalyst components for the polymerization of olefins
US-10113012-B2 · Oct 30, 2018 · US
Use of organic siloxane, and polyolefin in-reactor alloy and preparation method thereof
US-2018298123-A1 · Oct 18, 2018 · US
Olefin-polymerization solid catalytic component, production method for olefin-polymerization catalyst, and production method for olefin polymer
US-2018265612-A1 · Sep 20, 2018 · US
Catalyst precursor and catalyst for the high-temperature (co)polymerization of alpha-olefin
US-9751959-B2 · Sep 5, 2017 · US
Catalyst component for olefin polymerization, catalyst, and use thereof
US-9751960-B2 · Sep 5, 2017 · US
Solid catalyst component for olefin polymerization, method for producing the same, olefin polymerization catalyst, and method for producing olefin polymer
US-2016326277-A1 · Nov 10, 2016 · US
Catalyst component for olefin polymerization, catalyst, and use thereof
US-2016115257-A1 · Apr 28, 2016 · US