Date:3/2/2010

MISSISSAUGA, ON, March 2 /PRNewswire-FirstCall/ - YM BioSciences Inc. (NYSE YMI, TSX:YM), announces that it filed a Form 6K describing that certain US patents for nimotuzumab licensed to YM's majority-owned Canadian subsidiary , CIMYM BioSciences Inc., have become subject to a lien in the United States, pursuant to a court order, to a third party. The lien is a consequence of a dispute unrelated to either YM, its licensor, or the patent owner, the Center of Molecular Immunology (CIM). Counsel has advised the Company that the lien does not affect the exclusive, royalty-free license for nimotuzumab issued by CIMAB S.A. to CIMYM for numerous territories, including the US.

None of the international patents for nimotuzumab for which YM is licensed are affected.

"We do not believe that this situation will have an impact on YM's continuing development of nimotuzumab in the US nor do we expect it to be material to YM," said Da
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SOURCE YM BioSciences Inc. Copyright©2010 PR Newswire. All rights reserved

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