Patent 7377596 was granted and assigned to Amerityre on May, 2008 by the United States Patent and Trademark Office.
A urethane wheel that is manufactured by molding, casting, or vacuum forming methods in a mold having a wheel shaped cavity that a wheel core formed from a rigid material such as steel or aluminum has been supported in to receive a flow of a urethane material directed therearound, encapsulating the entire wheel core and forming a wheel capable of supporting a car or light truck traveling at highway speeds.