Apple-Samsung patent case goes to the jury

After three weeks of arguments, the high-stakes patent dispute between Apple and Samsung is in the hands of a jury. The nine men and women face the formidable task of sifting through thousands of pages of complex technical arguments to make a decision that could shape the future of mobile devices. Apple is asking for $2.5 billion in damages for design infringement, while Samsung is seeking $422 million for technology patent infringement.

JetBlue gives American the cold shoulder

JetBlue Airways has "no interest" in a merger with bankrupt American Airlines and hasn't received a document that would allow an exchange of confidential information between the carriers. After being identified by American parent AMR Corp. last month as likely to get a nondisclosure agreement, JetBlue has held no talks with the larger airline about a combination, Chief Executive Dave Barger said. "We have not received a nondisclosure agreement," he said. "We're not interested in receiving a nondisclosure agreement from American Airlines."

Groupon shares still sinking, now below $5

Shares of Groupon fell to a record low after Barclays PLC cut the price estimate and rating for the shares, citing the potential for increasing marketing costs and narrowing profit margins amid sales of discounted items. Chicago-based Groupon dropped 2.4 percent to close at $4.54. The stock has lost 77 percent since an initial public offering in November. Barclays downgraded its recommendation on the shares to the equivalent of a sell, and lowered the price estimate to $4 from $15.

Southwest turns to workers for saving ideas

Southwest Airlines, which has curbed fleet expansion amid higher fuel prices, began asking employees this week to help it stay competitive by finding ways to save $5 a day. The program repeats an initiative used by then-Chief Executive Herb Kelleher in 2000, when the Dallas-based airline's fuel costs rose 63 percent. Southwest will choose from among the best ideas later this year and implement them, CEO Gary Kelly told workers in a weekly recorded message.