Patents.
The discovery of Dr. Benozzi has been patented in the United States with the number US 8.524.758 B2 under the title “OPHTHALMIC COMPOSITIONS OF PARASYMPATHETIC STIMULANTS AND ANTI-INFLAMMATORIES FOR USE IN THE TREATMENT OF PRESBYOPIA”, as well as in the European Union under the same title, with No. 1,938,839 B1. It is like this in other countries.