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:
May. 24, 2011
Filed:
Jun. 24, 2010
William Barton, Belper, GB;
Mark C. Davies, Belper, GB;
David J. Moreton, Belper, GB;
Paul R. Stevenson, Belper, GB;
Dean Thetford, Rochdale, GB;
William Barton, Belper, GB;
Mark C. Davies, Belper, GB;
David J. Moreton, Belper, GB;
Paul R. Stevenson, Belper, GB;
Dean Thetford, Rochdale, GB;
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) a hydrocarbyl substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with said acylating agent and further having a tertiary amino group; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergents in a fuel composition to reduce intake valve deposits.