PersonalWeb and Level 3 Communications have filed patent complaint against Rackspace for hosting GitHub. Update: A commenter notes that PersonalWeb is suing several other tech companies as well, including Yahoo, Facebook and Apple.
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PersonalWeb is the main plaintiff in the case. Level3 and Personal Web purchased several patents from Kinetech and Digital Island in 2000 and each own a 50% undivided interest in the patents.
PersonalWeb develops StudyPods a “social learning platform” that enables students to upload notes and collaborate. Students can upload assignments to StudyPod and the app will search for related notes and documents to help the student with their research. To do this it uses natural language processing, and the company cites many patents that it holds in this area. The PersonalWeb site says the company is also applying these patents to the enterprise. The complaint also lists a PersonalWeb product called Global File Registry, a digital content management system for copyright protection.
Here’s the complaint, via PriorSmart:View this document on Scribd
The patents in question are: