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(12) PATENT APPLICATION PUBLICATION (21) Application No.1503/DELNP/2004 A<br />

(19) INDIA<br />

(22) Date <strong>of</strong> filing <strong>of</strong> Application :01/06/2004 (43) Publication Date : 16/03/2007<br />

(54) Title <strong>of</strong> <strong>the</strong> invention : CERIUM OXIDE NANOPARTICLES<br />

(51) International classification :C10L1/12 (71)Name <strong>of</strong> Applicant :<br />

(31) Priority Document No :0126663.4 1)OXONICA LIMITED<br />

(32) Priority Date :06/11/2001 Address <strong>of</strong> Applicant :UNIT 7 BEGBROKE SCIENCE AND BUSINESS<br />

(33) Name <strong>of</strong> priority country :U.K.<br />

PARK, SANDY LANE, YARNTON, KIDLINGTON, OXFORDSHIRE OX5<br />

(86) International Application No<br />

:PCT/GB02/05013 1PF, GREAT BRITAIN U.K.<br />

Filing Date<br />

:06/11/2002 (72)Name <strong>of</strong> Inventor :<br />

(87) International Publication No<br />

:WO 03/040270<br />

A3<br />

1)GARETH WAKEFIELD<br />

(61) Patent <strong>of</strong> Addition to Application Number :NA<br />

Filing Date<br />

:NA<br />

(62) Divisional to to Application Number<br />

:NA<br />

Filing Date<br />

:NA<br />

No <strong>of</strong> Pages : 13 No <strong>of</strong> Claims : 19<br />

(57) Abstract :<br />

A fuel or fuel additives is disclosed which comprise particles <strong>of</strong> cerium oxide which have been doped with a divalent or trivalent metal or metalloid which is<br />

a rare earth metal, a transition metal or a metal <strong>of</strong> group IIA, IIIB, VB, or VIB <strong>of</strong> <strong>the</strong> Periodic Table.<br />

The Patent Office Journal 16/03/2007 5812

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