"Millionaire Nathan Myhrvold, renowned in the computer industry as a Renaissance man, has a less lofty message for tech companies these days: Pay up. Over the past few years, the former Microsoft Corp. executive has quietly amassed a trove of 20,000-plus patents and patent applications related to everything from lasers to computer chips. He now ranks among the world's largest patent-holders — and is using that clout to press tech giants to sign some of the costliest patent-licensing deals ever negotiated."
Source: http://online.wsj.com/article/SB122161127802345821.html?mod=googlenews_wsj


