They ended up losing a lot of those claims recently if I recall correctly, but that being said I agree for a long time it did and still does hurt the LMS enviro

They ended up losing a lot of those claims recently if I recall correctly, but that being said I agree for a long time it did and still does hurt the LMS environment. http://mfeldstein.com/all-44-blackboard-patent-claims-invalidated-by-uspto/ http://mfeldstein.com/all-44-blackboard-patent-claims-invali... (2008)