US Patent Office rejects entire Blackboard patent

Thanks to Steve Krogull for pointing out that Desire2Learn posted information that shows the US Patent Office has rejected all claims in Blackboard's first eLearning patent. We've seen this before ("non-final" is the key term), and now there is another very similar Blackboard patent on the books, but this is more promising news for the educational technology community.

Meanwhile, I am wondering what Blackboard customers think about the estimated $25 million Blackboard has spent on their patents and litigation.