I think RPX http://www.rpxcorp.com/ http://www.rpxcorp.com/ already does what you are suggesting. They seem to be doing quite well with that concept and just ha

I think RPX http://www.rpxcorp.com/ http://www.rpxcorp.com/ already does what you are suggesting. They seem to be doing quite well with that concept and just had a successful IPO: http://247wallst.com/2011/05/05/rpx-ipo-changes-tech-patent-landscape-patent-trolls-to-troll-hunters-rpxc-goog-nrtlq/ http://247wallst.com/2011/05/05/rpx-ipo-changes-tech-patent-...