Both are indispensable:
On the premise of market demand, profits can be predicted according to market demand.
According to the profit situation, compare the investment funds needed for the implementation of the technical scheme to see if it has investment potential.
If the protection scope of the authorization claim is large and the above two conditions are met at the same time, the market prospect will be better and the value of the patent will naturally be more; If the scope of protection is narrow and easy to be evaded, then it can be realized without practical patented technology, and the value of the patent will be greatly reduced.
The evaluation of patent value is a complicated process.