Halliburton actually tried to patent patent-trolling: http://www.techdirt.com/articles/20081107/0118162765.shtml http://www.techdirt.com/articles/20081107/01181

Halliburton actually tried to patent patent-trolling: http://www.techdirt.com/articles/20081107/0118162765.shtml http://www.techdirt.com/articles/20081107/0118162765.shtml