District Court, D. Delaware February 22, 2000, Civ.A. 99-391-RRM (Elf Atochem North America, Inc. v. LaRoche Industries, Inc.)

OPINION

McKELVIE, District Judge.

This is a patent case. Plaintiff Elf Ato-chem North America, Inc. is the North American subsidiary of Elf Atochem, a French corporation. Plaintiff (“Elf Ato-chem”) is a Pennsylvania corporation with its principal place of business in Philadelphia. Elf Atochem is the assignee of U.S. Patent No.