Kendo - 12:31 am on Mar 17, 2013 (gmt 0)
"PageRank" is merely a term used by SEOs to describe "popularity" and "peter power". It can be calculated in many different ways. However I doubt if counting the number of backlinks can be patented. So unless "PageRank" is protected by trade mark, I don't see how anyone has any right of ownership in the real world.