Melbourne, May 26, 2009 (ABN Newswire) - The Directors of Benitec Limited (ASX:BLT)(PINK:BNIKF) provide the following update on the US patent re-examination of the '099 Graham patent. CSIRO filed an appeal with the USPTO Board of Patent Appeals and Interferences on 22 May against the two remaining obviousness rejections. CSIRO appealed the decision of the Examiner mailed 26 November 2008, rejecting reexamined claims 4 to 7 and 10 to 28 in connection with the merged ex parte reexamination.