Qualcomm, the U.S. mobile chip maker, has bought close to 2,000 patents from Hewlett Packard. Many of the U.S. and foreign patents relate to former smart phone maker Palm. (Remember them?) These days Palm’s patents are a bit like hot potatoes — HP bought Palm in 2010 to get into the mobile device game. The company appears to have lost that game and is now selling. So what does Qualcomm want with Palm? Avi Greengart, research director at Current Analysis, tells Marketplace Tech host Ben Johnson.