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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12364976 B1

PDFFull Text
Date of Patent:
Jul. 22, 2025

Filed:

Mar. 06, 2023

Catalyst systems suitable for the tetramerization of ethylene and methods of using the same

Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Sibo Lin, Arlington, MA (US);

Dana Amber Wong, Chestnut Hill, MA (US);

Yagnaseni Ghosh, Lexington, MA (US);

Motaz Khawaji, Thuwal, SA;

Wei Xu, Thuwal, SA;

Mohamed Elanany, Thuwal, SA;

Assignee:

Saudi Arabian Oil Company, Dhahran, SA;

Attorney:

DINSMORE & SHOHL LLP

Primary Examiner:

Yun Qian

Int. Cl.
CPC ...
B01J 31/00 (2006.01); B01J 31/12 (2006.01); B01J 31/18 (2006.01); C07C 11/02 (2006.01);
U.S. Cl.
CPC ...
B01J 31/189 (2013.01); B01J 31/122 (2013.01); C07C 11/02 (2013.01); B01J 2231/20 (2013.01); C07C 2531/14 (2013.01); C07C 2531/18 (2013.01);
Abstract

Catalyst systems suitable for tetramerizing ethylene to form 1-octene may include a catalyst including a chromium compound coordinated with a ligand and a co-catalyst including an organoaluminum compound. The ligand may have a chemical structure according to Formula (1), wherein Ris a (C-C) substituted or unsubstituted hydrocarbyl group; R, R, R, and Rare independently chosen from (C-C) hydrocarbyl groups; and Rand N are in a cis configuration.

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Lin, Sibo. (2025). Catalyst systems suitable for the tetramerization of ethylene and methods of using the same (U.S. Patent No. 12364976). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12364976

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