Mega corporations capable of funding FDA trials buy patents and use them to create/produce drugs. They do that sometimes. Other times they discover a drug chem

Mega corporations capable of funding FDA trials buy patents and use them to create/produce drugs. They do that sometimes. Other times they discover a drug chemistry, patent it, and then do nothing with it because they decide the market isn't profitable enough. That stops other companies bringing the same drug chemistry to the market. Patent trolls actively want people to exploit their patents in order to sue. I'm not sure which is more disagreeable.