I know, he actually built something and patented it... Imagine that, actually doing something with the patent you own instead of using it as a blocker.
Why did nobody else find this when trying to invalidate Apple patents? Well just look at the huge volume of patents involved. The US patent office seem to do very little indeed, just cash the cheque and say "Yup". IIRC the process in the UK involves an initial search, during which point invalid applications should be rejected.