He knows that Bob "designed the controls on plastic moulding machines." I doubt he has any idea what that actually means - he just repeats the phrase "without him, we wouldn't have a simple plastic funnel" the same way he repeats the same jokes over and over. Certainly I think he has an inflated idea of Bob's importance in the making of the modern world, no doubt stoked by Borb themselves.
While I don't want to diminish Bob's achievements, the impression I get is that he was one of a number of people working on that project and if he hadn't done it, someone else would. It wasn't exactly Newton and the apple.