June 2005 Dual Spiral Systems Inc. receives United States Patent:


		Dual Spiral Systems has been granted US patent 6,902,385 for plastics extrusion dies using melt flow layer division that doubles the number of layers being extruded from the die.


		Dual Spiral Systems pioneered the development of the Dual Spiral Systems die, but that development hasn't slowed. Dual Spiral Systems research and development continuously works to increase die performance and component technology. Because we don't offer "off the shelf" extrusion die designs, our die technology improvement programs will never stop.