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US Patent 11505513 Chromium bicyclic phosphinyl amidine complexes for tetramerization of ethylene

Patent 11505513 was granted and assigned to Chevron Phillips Chemical on November, 2022 by the United States Patent and Trademark Office.

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Patent attributes

Patent Applicant

Chevron Phillips Chemical

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Current Assignee

Chevron Phillips Chemical

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Uriah J. Kilgore0

Daniel H. Ess0

Doo-Hyun Kwon0

Orson L. Sydora0

Steven M. Bischof0

Date of Patent

November 22, 2022

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Patent Application Number

175215050

Date Filed

November 8, 2021

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Patent Citations

US Patent 10329212 Reduced polymer formation for selective ethylene oligomerizations

US Patent 10414698 Reduced polymer formation for selective ethylene oligomerizations

US Patent 10414699 Process improvements in selective ethylene oligomerizations

US Patent 10435336 Olefin compositions

US Patent 10464862 Oligomerization reactions using aluminoxanes

US Patent 10493442 Fluorinated N

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US Patent 10807921 Catalyst systems and ethylene oligomerization method

US Patent 10144752 Phosphinyl amidine compounds, metal complexes, catalyst systems, and their use to oligomerize or polymerize olefins

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Patent Citations Received

US Patent 11685701 Chromium bicyclic phosphinyl amidine complexes for tetramerization of ethylene

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Patent Primary Examiner

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CPC Code

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The present disclosure relates to a catalyst system comprising i) (a) an N

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