Uniloc v. Red Hat and Rackspace (2013, USA)
Uniloc accused Red Hat and Rackspace of infringing one their patents, US5,892,697, but the case was dismissed at the first (hearing?) because, in the judge's words "is a mathematical formula that is unpatentable under Section 101."
This positive outcome was particularly surprising because it came from the notoriously patent-friendly court of the East Texas district.
 Related pages on en.swpat.org
- Rackspace, Red Hat Win Decisive Patent Victory, 28 Mar 2013, Red Hat and Rackspace press release
- Rackspace/Red Hat Hand Uniloc A Quick And Significant Defeat ~mw, 28 Mar 2013, Groklaw
- You can’t patent simple math, judge tells patent troll Uniloc, 28 Mar 2013, Joh Brodkin (Ars Technica)
- US patent 5,892,697
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