Behind the EpiPen controversy are questions about patents granted to drugmaker; St. Louis Post-Dispatch, 9/4/16

Samantha Liss, St. Louis Post-Dispatch; Behind the EpiPen controversy are questions about patents granted to drugmaker:

"Drugmaker Mylan NV has received the brunt of criticism for alleged price-gouging on the lifesaving EpiPen, but other factors — and players — contributed to the monopoly it enjoys today, say experts familiar with the drug industry.

First approved in 1987, the EpiPen is protected from competition until 2025 by four patents. Three of those patents were awarded within the last six years."