MEMORANDUM OPINION WILLIAM D. QUARLES, JR., District Judge. D2L Ltd. and Desire2Learn, Inc. sued Blackboard, Inc. for a declaratory judgment of non-infringement and invalidity of U.S. Patent No. 7,558,853 (“the '853 patent”). Pending are Blackboard’s motions to dismiss for lack of subject matter juris <span citatio…
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