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Armstrong Teasdale Notes One of Their Most Interesting Patent Cases in the St. Louis Business Journal

May 24, 2013 Media Coverage

The 10 law firms on this year’s list of St. Louis’ largest patent practices were the force behind the more than 2,220 local patents issued last year. That total includes patents in everything from medicine and the life sciences to renewable energy and consumer goods. We asked patent attorneys about their most interesting patent cases. Here is what they said: 

No. 1: Armstrong Teasdale LLP 
Head of patent practice: Patrick Rasche 
U.S. Pat. No. 8,216,362: Assigned to St. Peters-based silicon wafer maker and solar energy company MEMC Electronic Materials, this patent involves the preparation of semiconductor grade single-crystal silicon used in the manufacture of electronic components. The patent, which is associated with MEMC’s Perfect Silicon brand, relates to a process for preparing single-crystal silicon ingots that are free of agglomerated intrinsic point defects, as are the wafers obtained from them.

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