Free Patent/Trademark Report to Commissioner - District Court of Delaware - Delaware

O AO 120 (Rev. 3/04)

Case 1:07-cv-00731-GMS

Document 4

Filed 11/15/2007

Page 1 of 1

TO:

Mail Stop 8 Director of the U.S. Patent and Trademark Office P.O. Box 1450 Alexandria, VA 22313-1450

REPORT ON THE FILING OR DETERMINATION OF AN ACTION REGARDING A PATENT OR TRADEMARK

In Compliance with 35 U.S.C. § 290 and/or 15 U.S.C. § 1116 you are hereby advised that a court action has been filed in the U.S. District Court DOCKET NO. DATE FILED 07-cv-731 11/15/2007 PLAINTIFF Endo Pharmaceuticals Inc. Et al. Delaware on the following

x Patents or

Trademarks:

U.S. DISTRICT COURT DISTRICT OF DELAWARE DEFENDANT Impax Laboratories Inc.

PATENT OR TRADEMARK NO. 1 2 3 4 5 5,662,933 5,958,456 US 7,276,250 B2

DATE OF PATENT OR TRADEMARK 09/02/1997 09/28/1999 10/02/2007

HOLDER OF PATENT OR TRADEMARK Edward Mendell Co. Inc. Edward Mendell Co. Inc. Penwest Pharmaceuticals Company

In the above--entitled case, the following patent(s)/ trademark(s) have been included:

DATE INCLUDED PATENT OR TRADEMARK NO. 1 2 3 4 5

INCLUDED BY G Amendment DATE OF PATENT OR TRADEMARK Answer Cross Bill Other Pleading HOLDER OF PATENT OR TRADEMARK

In the above--entitled case, the following decision has been rendered or judgement issued: DECISION/JUDGEMENT

CLERK PETER T. DALLEO, CLERK OF COURT

(BY) DEPUTY CLERK

DATE 11/15/2007

Copy 1--Upon initiation of action, mail this copy to Director Copy 3--Upon termination of action, mail this copy to Director Copy 2--Upon filing document adding patent(s), mail this copy to Director Copy 4--Case file copy