As Apple and HTC End Lawsuits, Smartphone Patent Battles Continue - The New York Times

Opinion The Patent Fight That Could Take Apple Watches Off the Market - The New York Times

As Apple and HTC End Lawsuits, Smartphone Patent Battles Continue - The New York Times

The Biggest Tech Fights of 2012

HTC Files Complaint Against Apple Over Patents - The New York Times

U.S. agency: Apple infringes Samsung patent on older iPhones, iPads

Is The Next iPhone Already In Patent Trouble?

How Apple and Microsoft Armed 4,000 Patent Warheads

American Economic Association

Apple vs. Samsung explained: An overview of the patent battleground

Apple involved in 60% of all major mobile patent suits

In Technology Wars, Using the Patent as a Sword - The New York Times