First 35 Claims of Blackboard'S Patent Ruled Invalid

Michael Feldstein, Neuropsychiatric Disease and Treatment, Aug 06, 2007
Commentary by Stephen Downes

This is a huge win for Desire2Learn, as the court has ruled that Blackboard's first substantive claim, that of assigning access according to a role in a course, to be invalid. "Because that phrase is indefinite, all of Claim 1 is rendered invalid because of indefiniteness." Also, the court found for D2L's interpretation of terms in the remainder of the patent. See also Seb Schmoller and Desire2Learn's patent lawsuit blog.
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