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Aventis obtains United States patent.

Aventis Pharma Deutschland GmbH (Frankfurt am Main, Germany) has patented a process for drying protein crystals starting from an aqueous protein crystal suspension, which comprises drying the protein crystal suspension in a centrifugal dryer, where the protein crystals, after they have been filtered off from the protein crystal suspension, are brought into contact with a drying medium which consists of a mixture of water and a nonaqueous solvent which is miscible with water in any ratio and which has a lower vapor pressure than water. In the process, a drying gas which has been moistened with water is advantageously used. (US 6,408,536)
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Comment:Aventis obtains United States patent.(Brief Article)
Publication:BIOTECH Patent News
Article Type:Brief Article
Geographic Code:1USA
Date:Jun 1, 2002
Previous Article:Synergy Vaccines announces issuance of alpha-2-macroglobulin complex patent.
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