NEW YORK, June 14 (GenomeWeb News) - Sigma-Aldrich and Oxford BioMedica have sued Open Biosystems for allegedly infringing two patents that cover lentiviral-based systems for the delivery of foreign DNA into mammalian cells.
 
The complaint, filed in US District Court Eastern District of Missouri, alleges that Open Biosystems is infringing US Patent Nos. 6,924,123 and 7,056,699.  
 

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