Patent 7780417 was granted and assigned to Nordex on August, 2010 by the United States Patent and Trademark Office.
A wind energy plant with a rotor hub which is connected to at least one pitch bearing, and with at least one rotor blade, the blade root of which is connectable to the pitch bearing via joining means, wherein a stiffening element is provided, which is arranged between the rotor blade root and the pitch bearing and connected to the same via the joining means.