My secret plan to get rich is to patent a virus, infect people with it, and sue everyone for making copies when the virus uses their body to make copies of itself.
Too much work. Just patent a gene sequence that produces a vital enzyme to human life. And then charge everyone a royalty because their own bodies use the gene sequence to make the enzyme. That's a no distribution system compared to viral delivery. Histone H3 looks like a promising candidate, especially since it's absolutely vital to mitosis. Anyone undergoing cell replacement is producing it and thus is a potential royalty payer.
"If your opponent is of choleric temperament, seek to irritate him." - Sun Tzu