PITTSBURGH (AP) - A Michigan food entrepreneur is trying to convince a federal court jury in Pittsburgh that his "Little Dipper" condiment package led the H.J. Heinz Co. to develop its Dip & Squeeze ketchup container.

PITTSBURGH (AP) A Michigan food entrepreneur is trying to convince a federal court jury in Pittsburgh that his "Little Dipper" condiment package led the H.J. Heinz Co. to develop its Dip & Squeeze ketchup container.

Heinz rolled out the container in February 2010. It has a dipping cup like other fast-food sauces but one narrow end can be torn off so the ketchup can be squeezed onto food.

But David Wawrzyinski (war-ruh-ZIN'-skee), who lives near Detroit, claims Heinz didn't have the idea for the dual-function packet until he contacted the company in 2008 with an idea he patented in 1997.

The Pittsburgh jury must decide whether Heinz used Wawrzyinski's "concrete, new and novel" ideas and, if so, whether they owe him money. If so, a separate trial for damages begins June 10.