Skin patches that prevent ulcers. Devices that degrade crop pesticides and make them safe to handle. A smart app that monitors water usage in notoriously dry parts of the world. These are all products developed by student entrepreneurs being featured at this year’s Open Conference in Washington, DC. VentureWell, a not-for-profit organization that supports student inventors and entrepreneurs, will host the conference on March 23-25 at the Hyatt Regency Washington. Read more here.