(19)

(11)

EP 1 330 680 A1

(12)

(43) Date of publication: 30.07.2003 Bulletin 2003/31 (21) Application number: 01955932.7 (22) Date of filing: 24.07.2001

(51) International Patent Classification (IPC)7: G03F 9/00, C03B 37/027, C03C 3/112, C03C 15/00 (86) International application number: PCT/US0123/257 (87) International publication number: WO 0202/1217 (14.03.2002 Gazette 2002/11)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR (30) Priority: 08.09.2000 WO PCT/US00/24776 22.12.2000 US 258132 P 24.02.2001 US 271135 P 24.02.2001 US 271136 P (71) Applicant: CORNING INCORPORATED Corning, N.Y. 14831 (US)	(72) Inventors: BROWN, John, T. Corning, NY 14830 (US) CURRIE, Stephen, C. Corning, NY 14830 (US) MOORE, Lisa, A. Corning, NY 14830 (US) PAVLIK, Robert, S., Jr Corning, NY 14830 (US) SCHIEFELBEIN, Susan, L. Corning, NY 14830 (US) (74) Representative: Marchant, James Ian  Elkington and Fife,Prospect House,8 Pembroke Road Sevenoaks,Kent TN13 1XR Sevenoaks,Kent TN13 1XR (GB)