Between May 8 and 22, Google conducted a rather peculiar experiment, called the ‘Patent Purchase Promotion’. For this special action, Google created a portal where companies and people can present their patents to Google. Later this month, Google will make an offer to the applicants in order to actually purchase their patents. Google will evaluate the system and maybe implement it on a permanent basis. More information on http://googlepublicpolicy.blogspot.nl/2015/04/announcing-patent-purchase-promotion.html