A Patent that covers a software "invention". Granted in the US and the EU, though they're not actually currently legal in the EU.
http://wiki.linuxquestions.org/wiki/Patent
http://directory.google.com/Top/Society/Issues/Intellectual_Property/Patents/The European council is pushing for unlimited patentability of software. See
FFII: Software Patents in Europe
http://wiki.ael.be/index.php/FightingSWPatents
http://petition.eurolinux.org/index_html?LANG=enSee also:
Part of CategoryLegalese
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