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ELF ATOCHEM NORTH AMERICA v. LAROCHE INDUSTRIES

No. Civ.A. 99-391-RRM.

80 F.Supp.2d 252 (2000)

ELF ATOCHEM NORTH AMERICA, INC., Plaintiff, v. LAROCHE INDUSTRIES, INC., Defendant.

United States District Court, D. Delaware.

January 12, 2000.

Attorney(s) appearing for the Case

Jack B. Blumenfeld, Mary B. Graham, Morris, Nichols, Arsht & Tunnell, Wilmington, Delaware, Mari M. Shaw, David W. Cromley, Robert L. Ebby, Morgan, Lewis & Bockius LLP, Philadelphia, Pennsylvania, Michael P. Tierney, Morgan, Lewis & Bockius LLP, Washington, DC, for plaintiff.

Philip A. Rovner, Potter Anderson & Corroon LLP, Wilmington, Delaware, Michael O'Shea, Christopher Serbagi, Clifford Chance Rogers & Wells LLP, Washington, DC, for defendant.

OPINION

McKELVIE, District Judge.

This is a patent case. Plaintiff Elf Atochem North America, Inc. is the North American subsidiary of Elf Atochem, a French corporation. Plaintiff ("Elf Atochem") is a Pennsylvania corporation with its principal place of business in Philadelphia. Elf Atochem is the assignee of U.S. Patent No. 4,948,479 ("the '479 patent"), which claims a process for separating the chemical 1,1-dichloro-1-fluoroethane ("HCFC-141b") from contaminants...

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