"Like most venture-backed firms, RPX Corporation, a new company devoted solely to buying patents, hopes to make a lot of money and eventually go public.
But the strategy of the start-up, backed by the blue-chip venture capital firms Kleiner Perkins Caufield & Byers and Charles River Ventures, is exactly the opposite of the other patent funds. It buys patents with the expressed intention of not using them and not suing anyone else who does."
Main article: http://bits.blogs.nytimes.com/2009/03/30/trolling-for-patents-to-fight-patent-trolls/
The term "Patent Trolling" is derogatory - see http://en.wikipedia.org/wiki/Patent_troll#cite_note-39 and WSJ article, Inventors have rights too by Nathan Myrhvold
About RPX http://www.rpxcorp.com/company.html
RPX News http://www.rpxcorp.com/releases/index.html
RPX Blog http://rpxcorp.com/blog/
See also Nathan Myhrvold (http://en.wikipedia.org/wiki/Nathan_Myhrvold) former Microsoft CTO http://en.wikipedia.org/wiki/Nathan_Myhrvold
Head of similar firm, Intellectual Ventures: http://en.wikipedia.org/wiki/Intellectual_Ventures
Intellectual Ventures: http://www.intellectualventures.com/
Intellectual Ventures News: http://www.intellectualventures.com/news.aspx
Article on Intellectual Ventures: http://220.127.116.11/search?q=cache:http://www.intven.com/docs/IAM_Issue_19_Cover_Story.pdf