WASHINGTON (AP) — To hear the Americans tell it, the Chinese have gone on a commercial crime spree, pilfering trade secrets from seed corn to electronic brains behind wind turbines. China has stripped the arm off a T-Mobile robot, the U.S. says, and looted trade secrets about robotic cars from Apple.

The alleged victims of that crime spree are individual American companies, whose cases lie behind the Trump administration's core complaint in the high-level U.S.-China trade talks going on in Washington: That Beijing systematically steals American and other foreign intellectual property in a bid...