In a recently published decision (PDF file), the US patent office has declared US company Blackboard’s e-learning patent invalid. The patent office rejected all 44 claims in the disputed US patent number 6,988,138, (“Alcorn patent”) for a system for teaching in a virtual classroom using the internet, including chat, a virtual blackboard and provision of teaching materials.
Read more »US patent office declares Blackboard’s e-learning patent invalid
http://www.heise.de –
Category: Legal Tags:
