OPINION AND ORDER
SCHEINDLIN, District Judge.
I. INTRODUCTION
Mopex, Inc. ("Mopex") owns patents (the "Patents") for certain business methods relating to a type of investment vehicle called "Exchange Traded Funds" ("ETFs"). The American Stock Exchange ("Amex") filed this action on August 10, 2000, seeking a declaration that Mopex's Patents are invalid and not infringed by Amex's activities with respect to certain of its own ETFs (the "New...
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