PATENT SECURITY AGREEMENT THIS PATENT SECURITY AGREEMENT is made on the 27th day of November, 1996, by FIBERCORE, INC., a Nevada corporation, having its chief executive office at 174 Charlton Road, P.O. Box 206, Sturbridge, MA 01566 ("Grantor"), in favor of AMP INCORPORATED, a Pennsylvania corporation, having its chief executive office at 470 Friendship Road, M/S 176-034, Harrisburg, PA 17111 ("Secured Party"). WHEREAS, pursuant to that certain Convertible Debenture Purchase Agreement dated April 17, 1995 (as the same may be amended, modified or supplemented from time to time, the "Purchase Agreement") by and between Grantor and Secured Party, Secured Party has agreed to make certain advances of money and to extend certain financial accommodations to Grantor in the amounts and manner set forth in the Purchase Agreement (collectively, the "Debt"). Secured Party is willing to extend the Debt to Grantor, but only upon the condition, among others, that Grantor shall assign to Secured Party, for the benefit of Secured Party, certain patent rights to secure the obligations of Grantor under the Purchase Agreement. WHEREAS, pursuant to the terms of the Collateral Assignment, Patent Mortgage and Security Agreement dated as of April 17, 1995 (the "Security Agreement") which is hereby incorporated by reference, Grantor has granted to Grantor a security interest in all of Grantor's entire and exclusive right, title and interest, whether presently existing or hereafter arising or acquired, in, to and under all of the Grantor's Collateral (as defined in the Purchase Agreement). NOW, THEREFORE, for good and valuable consideration, receipt of which is hereby acknowledged, and intending to be legally bound, as collateral security for the prompt and complete payment when due of its obligations under the Loan Agreement and the Notes, Grantor hereby represents, warrants, covenants and agrees as follows: 1. Unless otherwise defined herein, the terms defined in the Purchase Agreement are used herein as therein defined. 2. To secure its obligations under the Purchase Agreement, Grantor does hereby mortgage and pledge to Secured Party, and grant to Secured Party a security interest in, all of Grantor's right, title and interest in, to and under its Patents, Patent Licenses whether now or hereafter owned and including without limitation each Patent and Patent application listed on Schedules A, B, C and D hereto, including without limitation all proceeds thereof (such as, by way of example but not by way of limitation, license royalties and proceeds of infringement suits), the right to sue for past, present and future infringements, all rights corresponding thereto throughout the world and all re-issues, divisions, continuations, renewals, extensions and continuations-in-part thereof (the "Collateral"). The security interest granted hereby shall be and remain a first and prior security interest in all of the Collateral. 1. This security interest is granted in conjunction with the security interest granted to Secured Party under the Security Agreement. The rights and remedies of Secured Party with respect to the security interest granted hereby are in addition to those set forth in the Security Agreement and the other Loan Documents, and those which are now or hereafter available to Secured Party as a matter of law or equity. Each right, power and remedy of Secured Party provided for herein or in the Security Agreement or the Purchase Agreement or any of the other Loan Documents, or now or hereafter existing at law or in equity shall be cumulative and concurrent and shall be in addition to every right, power or remedy provided for herein and the exercise by Secured Party of any one or more of the rights, powers or remedies provided for in this Patent Security Agreement, the Security Agreement or the Purchase Agreement or any of the other Loan Documents, or now or hereafter existing at law or in equity, shall not preclude the simultaneous or later exercise by any person, including Secured Party, of any or all other rights, powers or remedies. Following the termination of the Purchase Agreement in accordance with its terms and full payment and satisfaction under the Loan Documents, the security interest in Patents, Patent Licenses, Patent applications and any and all financing statements filed on behalf of Secured Party will be terminated, and Secured Party will execute such instruments as may be reasonably requested to evidence such termination, which shall be without warranty by or recourse to Secured Party, and shall be at the expense of Grantor. 2. IN WITNESS WHEREOF, the parties have caused this Patent Security Agreement to be duly executed by its officers thereunto duly authorized as of the date first written above. GRANTOR FIBERCORE, INC. By: /s/ Mohd Aslami --------------------- Name: Mohd Aslami ------------------- Title: Chairman and CEO ------------------ Accepted and acknowledged by: AMP INCORPORATED, AS SECURED PARTY By: /s/ James E. Marley --------------------------- Name: James E. Marley -------------------------- Title: Chairman of the Board ------------------------- 3. SCHEDULE A ISSUED U.S. PATENTS Patent Title Assignment Owner of Author/ Issue Comments ------ ----- ---------- --------- ------- ----- -------- No. History Record Inventor Date --- ------- ------ -------- ---- 4596589 Method for producing Reassignment: Fibercore, Inc. Perry, Gregory 6/24/86 single mode fiber 11-08-93 (signed) preform 10-11-94 (recorded) Assignor: Perry G. Assignee: Fibercore 04-17-95 (signed) 04-24-95 (recorded) Assignor: Fibercore Assignee: AMP Inc. 4,480,251 Apparatus to monitor Norscan Instr Ltd to Automated Light McNaughton, 10/30/84 electrical cables, Automated Light Technologies, Inc. John P. including splice joints Technologies, Inc. to Domenco, and the like, for the Connecticut Innovations Wayne E. ingress of moisture Incorporated and Vokey, David E Connecticut Development Authority 5,077,526 Cable Failure Detection Automated Light Automated Light Vokey, David E. 12/31/91 System Technologies, Inc. Technologies, Inc. Sontag, Kenneth 4,947,469 Resistive Fault Location Automated Light Automated Light Vokey, David E. 08/07/90 Method and Device for Technologies, Inc. to Technologies, Inc. Sontag, Kenneth use on electrical cables Connecticut Innovations Chamberlain, Incorporated and John C. Connecticut Development LaVallee, Authority Ronald L. 1. Patent Title Assignment Owner of Author/ Issue Comments ------ ----- ---------- --------- ------- ----- -------- No. History Record Inventor Date --- ------- ------ -------- ----- 5,369,518 Optical Communication Automated Light Automated Light Aslami, Mohd 11/29/94 System and Method; Technolgoies Inc. Technologies, Inc. LaVallee, Electrical Power Ronald L. Transmission thereof 4,480,251 Apparatus to monitor Norscan Instr. Ltd. Automated Light Mcnaughton, 04/22/80 electrical cables Technologies, Inc. John Domenco, Wayne Vokey, David 5410929 Devise for recycling a Fibercore Recycle Fibercore Recycle Wallace, Marcus 05/02/95 - ------- tube Systems, Inc. Systems, Inc. 2. SCHEDULE B U.S. PATENT APPLICATIONS Patent Date Title Assignment History Owner of Author/ ------ ---- ----- ------------------ -------- ------- Pending No. Record Inventor - ----------- ------ -------- 0004999 12/02/94 FABR of OPT Fiber Preform Fibercore, Mohd A. utilizing rod/tape concept Inc. Aslami 0005999 Being Manufacturing process for high Fibercore, Mohd A. researched quality vycor tubing for application Inc. Aslami in producing optical fiber preforms 0004228 12/01/95 Method and Apparatus for Fibercore, Mohd A. Appl # producing optical fiber preform Inc. Aslami PCT/US95/ 15685- European Conv. =================== ==================== ========================================== ======================================= 1. SCHEDULE C ISSUED FOREIGN PATENTS Patent No. Country Title Assignment History Owner of Author/ Issue Comments - ---------- ------- ----- ------------------ -------- ------- ----- -------- Record Inventor Date ------ -------- ---- GB2082406 United Apparatus to Domenco, Wayne Domenco, 06/13/84 Patent Kingdom monitor electrical David Wayne ceased cables, including McNaughton, John David through splice joints and the Paul McNaught non- like, for the ingress Vokey, David Ernest on, John payment of moisture Paul Vokey, David Ernest CA1168707 Canada Apparatus to Norscan Instr. Ltd Domenco, 06/05/84 - --------- monitor electrical Wayne cables David McNaught on, John Paul Vokey, David Ernest EP336036 Europe Cable Failure Vokey, David Ernest Vokey, 12/15/93 Detection System Sontag, Kenneth N. David Ernest 1. Patent No. Country Title Assignment History Owner of Author/ Issue Comments - ---------- ------- ----- ------------------ -------- ------- ----- -------- Record Inventor Date ------ -------- ---- AT98780 Austria Cable Failure Vokey, David Ernest Vokey, 01/15/94 Detection System Sontag, Kenneth N. David Ernest Sontag, Kenneth N. CA1317355 Canada Cable Failure Norscan Instr. Ltd. Vokey, 05/04/93 - ---------- Detection System David Ernest Sontag, Kenneth N. DE3886380 Germany Cable Failure Vokey, David Ernest Vokey, 01/27/94 - --------- Detection System Sontag, Kenneth N. David Ernest Sontag, Kenneth N. ES2058298 Spain Cable Failure Vokey, David Ernest Vokey, 11/01/94 - --------- Detection System Sontag, Kenneth N. David Ernest Sontag, Kenneth N. EP327191 Europe Resistive Fault Automated Light Vokey, 05/10/95 Patent - -------- Location Method Technologies David ceased and use on Ernest through electrical cables Chamberla non- in, Jim C. payment LaVallee, Ronald Sontag, Kenneth 2. Patent No. Country Title Assignment History Owner of Author/ Issue Comments - ---------- ------- ----- ------------------ -------- ------- ----- -------- Record Inventor Date AT122468 Austria Resistive Fault Automated Light Vokey, 05/15/95 -------- Location Method Technologies David Ernest Chamberla in, Jim C. LaVallee, Ronald Sontag, Kenneth CA1283704 Canada Resistive Fault Vokey,David E. Vokey, 04/30/91 - --------- Location Method David Ernest Chamberla in, Jim C. LaVallee, Ronald Sontag, Kenneth DE68922503 Germany Resistive Fault Automated Light Vokey, 06/14/95 - ---------- Location Method Technologies, Inc. David Ernest Chamberla in, Jim C. LaVallee, Ronald Sontag, Kenneth 3. Patent No. Country Title Assignment History Owner of Author/ Issue Comments - ---------- ------- ----- ------------------ -------- ------- ----- -------- Record Inventor Date ------ -------- ---- GB8800081 United Resistive Fault Automated Light Vokey, 02/10/88 - --------- Kingdom Location Method Technologies, Inc. David Ernest Chamberla in, Jim C. LaVallee, Ronald Sontag, Kenneth AU9458523 Australia Optical Automated Light Aslami, 07/19/94 - --------- Communication Technologies I Mohd System and Method LaVallee, Ronald WO9415415 World I.P. Optical Automated Light Aslami, 07/07/94 - --------- Organization Communication Technologies I Mohd System and Method LaVallee, Ronald WO9616911 World I.P. Making a single Fibercore Inc. Aslami, 06/06/96 Patent - --------- Organization mode fibre preform M.A. ceased Perry, through G.A. non- payment EP716047 Europe Making a single Fibercore, Inc. Aslami, 10/09/96 --------- mode fibre preform M.A. Perry, G.A. AU9645957 Austria Making a single Fibercore, Inc. Aslami, 06/19/96 - ---------- mode fibre preform M.A. Perry, G.A. =============================== ===================== ===================== ========= =========== ============ ================== 4. SCHEDULE D FOREIGN PATENT APPLICATIONS Patent Pending Date Country Title Assignment Owner of Author/ - -------------- ---- ------- ----- ---------- -------- ------- No. History Record Inventor --- ------- ------ -------- 236767/89 Japan Resistive Fault Location ---------- Method 9616911 India Method and Apparatus ------- for producing optical fiber preform 716047 Europe Method and Apparatus ------ for producing optical fiber preform 0004056 12/07/95 India Method and Apparatus Mohd. A. Application # for producing optical Aslami 1616/MAS/95 fiber preforms 0336036 12/15/93 Spain Cable Failure Detection United Kingdom System Italy 9645957 AU Method and Apparatus -------- for producing optical fiber preforms. - ---------------------------- ---------------------- ------------------------- ------------- --------------- ------------------- 1.