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(11)

EP 2 209 878 A2

(12)

(88) Date of publication A3: 22.10.2009 (43) Date of publication: 28.07.2010 Bulletin 2010/30 (21) Application number: 08837553.0 (22) Date of filing: 07.10.2008

(51) International Patent Classification (IPC):  C10L 5/10(2006.01) (86) International application number: PCT/US2008/079087 (87) International publication number: WO 2009/048875 (16.04.2009 Gazette 2009/16)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR (30) Priority: 08.10.2007 US 978199 P (71) Applicant: CoalTek, Inc. Tucker, GA 30084 (US)

(72) Inventors: DROZD, Michael, J. Raleigh NC 27608 (US) LAWSON, Steven, L. Marietta GA 30066 (US) DRUGA, Michael, C. Lawrenceville GA 30045 (US) LANG, Christopher, F. Sugar Hill GA 30518 (US) SURMA, Jan, M. Lawrenceville GA 30045 (US) BULLIS, Herbie, L. Punta Gorda FL 33983 (US) (74) Representative: Naismith, Robert Stewart et al Marks & Clerk LLP Aurora 120 Bothwell Street Glasgow G2 7JS Glasgow G2 7JS (GB)