Distillation: processes, separatory inventions 02/07

Recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
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02/22/2007 > 1 patent applications in 1 patent subcategories.

20070039813 - Method for obtaining crude 1,3-butadiene from a c4 fraction: A process for recovering crude 1,3-butadiene from a C4 fraction by extractive distillation using a selective solvent in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column to form a first subregion (A), a second subregion (B) and a... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

02/15/2007 > 1 patent applications in 1 patent subcategories.
02/08/2007 > 1 patent applications in 1 patent subcategories.
02/01/2007 > 1 patent applications in 1 patent subcategories.
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