Comment But do they have a working model? (Score 5, Insightful) 51
Without a working model, all they have is words and diagrams on paper that might not work in practice. But that piece of paper gives them the right to sue somebody else who implements the concept and makes it work.
They need to bring back the working model requirement. If there is no working model, grant the patent provisionally. Don't let the patent holder sue before they have a working model, and if they don't build a working model by a specific deadline (say 5 years) the patent goes up for auction, with proceeds going to the patent owner. Or they can sell the patent before the 5 years are up. The new owner must have a working model before they can sue.
That way inventors can still get paid for a useful invention even if they don't have the resources to build the working model themselves.