Blackboard Sues Rival Provider of Course-Management Software, Alleging Patent Infringement

By DAN CARNEVALE

Washington

Blackboard Inc. has sued a rival in the business of e-learning software, Desire2Learn Inc., accusing it of infringing a patent recently awarded to Blackboard.

Blackboard is seeking an undisclosed amount of damages and royalty payments. But some education observers fear that Blackboard's...