Hybrid supported metallocene catalyst, and polyolefin resin having excellent processability and using same
US-2019263942-A1 · Aug 29, 2019 · US
Component covered by group C08F4/64 with an organo-aluminium compound {(C08F4/64003 - C08F4/64196 take precedence)}
Component covered by group C08F4/64 with an organo-aluminium compound {(C08F4/64003 - C08F4/64196 take precedence)} · 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 | C08F4/642 |
| Official title | Component covered by group C08F4/64 with an organo-aluminium compound {(C08F4/64003 - C08F4/64196 take precedence)} |
| Display label | Component covered by group C08F4/64 with an organo-aluminium compound {(C08F4/64003 - C08F4/64196 take precedence)} |
| Total patents | 140 |
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 | 20 |
| 2016 | 13 |
| 2017 | 9 |
| 2018 | 15 |
| 2019 | 19 |
| 2020 | 12 |
| 2021 | 21 |
| 2022 | 14 |
| 2023 | 10 |
| 2024 | 5 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multisite heterogeneous catalyst, process for preparing the same and process for obtaining polyolefins using said catalyst
US-2019127498-A1 · May 2, 2019 · US
Methods of catalyst activation
US-10246535-B2 · Apr 2, 2019 · US
Metallocene-supported catalyst and method of preparing polyolefin using the same
US-2018265605-A1 · Sep 20, 2018 · US
Process for the polymerization of ethylene
US-10077322-B2 · Sep 18, 2018 · US
Stretch Films and Methods for Making the Same
US-2018257286-A1 · Sep 13, 2018 · US
Compositions and methods for olefin polymerization comprising metal organic frameworks
US-2018251581-A1 · Sep 6, 2018 · US
Method of Regulating Hydrogen to a Polymerization Reactor
US-2018237555-A1 · Aug 23, 2018 · US
Catalyst components for the polymerization of olefins
US-2018230247-A1 · Aug 16, 2018 · US
Methods for controlling molecular weight and molecular weight distribution
US-10005865-B1 · Jun 26, 2018 · US
Catalyst systems containing low valent titanium compounds and polymers produced therefrom
US-10000595-B1 · Jun 19, 2018 · US
Method of preparing polyolefin, and polyolefin prepared thereby
US-9975969-B2 · May 22, 2018 · US
Catalyst composition and a process for making ultra high molecular weight poly (alpha-olefin) drag reducing agents
US-9969826-B2 · May 15, 2018 · US
Supported Catalyst Systems and Processes for Use Thereof
US-2018086859-A1 · Mar 29, 2018 · US
Catalyst composition and method for preparing the same
US-9902845-B2 · Feb 27, 2018 · US
Catalyst composition for making ultra high molecular weight poly (alpha-olefin) drag reducing agents
US-2018051110-A1 · Feb 22, 2018 · US
Ethylene/alpha-olefin interpolymer composition
US-9884929-B2 · Feb 6, 2018 · US
Polyethylene composition having high stress cracking resistance
US-9879099-B2 · Jan 30, 2018 · US
Polyethylene composition having high stress cracking resistance
US-2017355788-A1 · Dec 14, 2017 · US
Low haze polyethylene polymer compositions
US-9828495-B2 · Nov 28, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F4/642?
- CPC C08F4/642 is the Cooperative Patent Classification code for “Component covered by group C08F4/64 with an organo-aluminium compound {(C08F4/64003 - C08F4/64196 take precedence)}.”
- How many patents are filed under CPC C08F4/642 (Component covered by group C08F4/64 with an organo-aluminium compound {(C08F4/64003 - C08F4/64196 take precedence)})?
- Our database includes 140 publications tagged with this CPC code.
- Is patent activity under CPC C08F4/642 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).