We’re sure you’ve had that feeling when you see a new invention trotted out by a big company, that moment of, “Hey, I totally had that idea first!” A Michigan entrepreneur took that feeling and turned it into a lawsuit against H.J. Heinz Co., saying the company ripped off his invention when creating its “Dip & Squeeze” ketchup packets. The Michigan man claims he patented the”Little Dipper” condiment package back in 1997, reports the Associated Press, and that Heinz took his idea and turned it into the Dip & Squeeze packets, which debuted in February 2010. The trial started yesterday in a federal court in Pittsburgh, and is expected to last through Thursday.