an official right to be the only person to make, use or sell a product or an invention; a document that proves this (Oxford)
the official legal right to make or sell an invention for a particular number of years (Cambridge)
دوا وہ دوا جو بغیر نسخے کے دستیاب ہوتی ہے
The device was protected by patent. (Oxford)
If you don't patent your invention, other people may make all the profit out of it. (Cambridge)
Patent on something
by patent
Protected by patent.
Copyright
License
Obscure
Hidden
Patent
Patently