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.:
Date of Patent:
Apr. 16, 1996
Filed:
Sep. 19, 1994
Applicant:
Inventors:
Jiang-Jen Lin, Houston, TX (US);
Pen-Chung Wang, Houston, TX (US);
Sarah L Weaver, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L / ; C10L / ;
U.S. Cl.
CPC ...
44329 ; 44333 ; 44340 ; 44347 ; 44353 ; 540362 ; 540451 ; 540482 ; 540531 ; 546216 ; 546219 ; 548520 ; 548547 ;
Abstract
The present invention is directed to the use of multiple cyclic nitrogen-containing alkoxylate compounds as additives in fuel compositions. The invention is also directed to the use of these multiple cyclic nitrogen-containing alkoxylate compounds for decreasing intake valve deposits, controlling octane requirement increases and reducing octane requirement. The invention is further directed to a class of multiple cyclic nitrogen-containing alkoxylate compounds.