Frustrated, Jin came out of the dungeon maker room after trying to design the remote portal based on what he had seen and what he knew. Turns out, it was not as easy as making the Gearbox device mainly because the blueprints and information had already been provided to Jin and the System. Through analysing the product, the System could simply replace inefficient circuit routes and increase the output.
Unfortunately Invention was another thing altogether. Theoretically, Jin could use the System's portal ability and call it the prototype to impress Ke Loong. However such a method would pose a drastic problem when it was time to mass produce it. Sure, Jin could say that because of the patent, he could solely produce the item and not let others touching it all.