Two of those four do, more or less, via the Coalition for Patent Fairness — http://www.patentfairness.org/learn/who/supporters/ http://www.patentfairness.org/le

Two of those four do, more or less, via the Coalition for Patent Fairness — http://www.patentfairness.org/learn/who/supporters/ http://www.patentfairness.org/learn/who/supporters/ (Disclaimer: my employer is also a member, and I approve, but play no part.)