The term of every patent in UAE is 20 years from the date of filing.
The first step starts with a prior art search which means a thorough search of various patent databases, technical literature and can even include a market survey. This is for determining if the invention is novel and non-obvious on the date of filing the application. If it is not so, then a patent cannot be [...]
Yes, he can patent his idea before he start producing the product. The patent examiner can decide if the invention, as described in those documents, is industrially applicable or not.