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. 06, 1999
Filed:
Dec. 17, 1996
Applicant:
Inventors:
David John Barratt, Thorton, GB;
Gautam Tavanappa Kalghatgi, Dodleston, GB;
Jian Lin, Upton-By-Chester, GB;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L / ;
U.S. Cl.
CPC ...
44350 ; 44352 ;
Abstract
The invention provides a gasoline composition which comprises a mixture of hydrocarbons of the gasoline boiling range containing an octane requirement reducing amount of an additive which comprises a furfuryl alcohol resin or derivative thereof and the use of the additive in a concentrate for a preparation of such gasoline composition and a method of operating a spark-ignition engine using such gasoline composition.