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In its continuing effort to protect its product innovation and investment in Research and Development, Roquette Frères filed suit for patent infringement against SPI Pharma, Inc. and Drytec Ltd., in the U.S. District Court for the District of Delaware.
The complaint alleges that the defendants' spray-dried mannitol products including MANNOGEM™ EZ Spray Dried Mannitol infringe Roquette’s patented technology.
The Roquette U.S. Patent Nr. 5,573,777, filed in 1993, protects a new physical form of mannitol that maximizes performance as a directly compressible excipient in the pharmaceutical industry. Roquette’s mannitol (PEARLITOL®) offers excellent tableting characteristics as well as the advantage of being non-cariogenic and non-hygroscopic. Its uniquely controlled particle size distribution also allows good flow and dissolution properties while minimizing dust and preventing explosions during production or packaging.
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