Amazon wants to patent 3d printing in the delivery vans. You order something and they print it in the delivery van driving towards you. It's probably a move in some grand corporate strategy of taking over the world, defensive patenting or preventative patenting. I will not even try to forecast implications of this ...
You can see their full patent application HERE.
I always claimed that intellectual property / patent system is broken beyond repair and needs major reform.
All of this has been done in some form in the past:
Here are some pictures form the patent application: