Exract stevia patent

http://www.google.com/patents/US20130108718

http://mobile.foodnavigator-usa.com/Suppliers2/PureCircle-Next-generation-Reb-D-and-Reb-X-stevia-sweeteners-ready-for-commercialization-in-2014#.VHD5CbVYlJ8

Patent seed stevia

http://www.google.com/patents/WO2014146084A1?cl=en