<text>  David Wawrzynski claims the Little Dipper condiment package he patented in 1997 led H.J. Heinz Co. to develop its Dip Squeeze ketchup packets, which it rolled out in February 2010 . A Michigan food entrepreneur claims the Little Dipper condiment package he patented in 1997 led H.J. Heinz Co. to develop its Dip Squeeze ketchup packets, which it rolled out in February 2010, lawyers in opening statements told a federal court jury in Pittsburgh on Monday. The trial, expected to last through until Thursday, will determine whether or not Pittsburgh-based Heinz used David Wawrzynskis concrete, new and novel ideas when it developed the dual-purpose ketchup packets. If the jury rules in the Detroit businessmans favor and determines Heinz agreed to pay for the ideas, a separate trial will begin June 10 on how much Heinz owes Wawrzynski. Heinz says it didnt use any of Mr. Wawrzynskis ideas they thought it up all on their own, his attorney, Eugene Boyle Jr. told the jury. Were here to tell you thats not true. Boyle told The Associated Press he cant say how much Wawrzynski is seeking because an expert hired to calculate the sum hasnt issued a final report. But Heinz attorney David Wolfsohn said Heinz owes nothing because the Dip Squeeze owes nothing to the cone-shaped container that Wawrzynski invented. Drawings of two versions of that product were shown to the jury, including one with a keyhole-shaped opening that enables a person to dip a french fry into ketchup, while wiping off excess amounts as its pulled out of the opening. Wawrzynski isnt claiming Heinz copied the exact design. Rather, he contends Heinz didnt have the idea for a ketchup container that could be dipped into and squeezed until they heard his pitch. Wolfsohn denied that claim. Heinz claims the Dip Squeeze grew out of an earlier idea called the Dunk n Squirt that it shelved in 2006 because it couldnt make it cheaply enough . The Dip Squeeze grew out of an earlier idea called the Dunk n Squirt that Heinz began working on in 2002 but shelved in 2006 because it couldnt find a vendor to make the throwaway ketchup packets cheaply enough, the company says. The packets must be cheap to purchase because fast-food restaurants and others give the packets away for free, Wolfsohn said. Prototypes developed in 2006 were keystone-shaped like Heinzs iconic ketchup label and had a peelable top if a customer wanted to dip a fry and a tear-off end so the ketchup could be squeezed, Wolfsohn said. Except for the keystone shape, the Dip Squeeze packets are nearly identical. But Boyle insists the idea came from the 44-year-old Wawrzynski, who began working in the food industry at 13. After working at pizzerias over five years from the time he was 16, Wawrzynski launched Wok to You, a firm that delivers Asian food from 30 different Detroit-area restaurants. Daves been tinkering with condiment packaging since high school, Boyle said. When an earlier letter to Heinz didnt attract attention, he wrote to then-CEO William Johnson in March 2008 and met with Heinz officials a month later, Boyle said. Heinz doesnt deny the meeting took place, but says the discussions revolved around his hand-held, cone-shaped container designed to keep french fries from dripping ketchup. The ideas that were discussed at that meeting had nothing to do with the Dip Squeeze, Wolfsohn said. 