What the world needs now are trucks that can cook food en route to customers’ homes so it arrives piping hot. That’s the view of Mountain View’s Zume Pizza. Armed with dozens of patents, the startup has been honing its baked-on-the-way method since 2016 with a pizza delivery operation in Silicon Valley. It also has robots make the pies, but it says the trucks are a bigger breakthrough. “The truck is a fully deployed kitchen,” said Zume CEO and co-founder Alex Garden.