Ivoclar Vivadent, makers of IPS e.max® products, announced today that they have filed a patent-infringement lawsuit in the United States District Court for the District of Delaware against Dentsply International Inc., Dentsply Prosthetics, and DeguDent GmbH. Ivoclar Vivadent asserts that Dentsply’s CeltraTM products infringe four patents issued in the United States covering lithium-silicate technologies that Ivoclar Vivadent developed. Ivoclar Vivadent considers this technology and the patents protecting this technology very valuable and will remain resolute and active in enforcing its patents.
About Ivoclar Vivadent
Ivoclar Vivadent, headquartered in Schaan, Liechtenstein, is one of the world’s leading manufacturers of innovative material systems for high-quality dental applications. The company’s success is based on a comprehensive portfolio of products and systems, strong research and development capabilities and a clear commitment to training and further education. The company has wholly owned subsidiaries in 24 countries, and it employs over 2,700 people worldwide.