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(11)

EP 1 261 453 A1

(12)

(43) Date of publication: 04.12.2002 Bulletin 2002/49 (21) Application number: 00912180.7 (22) Date of filing: 06.03.2000

(51) International Patent Classification (IPC)7: B24B 31/00, B24B 9/20, B24B 13/00 (86) International application number: PCT/US0005/729 (87) International publication number: WO 0106/6309 (13.09.2001 Gazette 2001/37)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (71) Applicant: Alcon Laboratories, Inc. Fort Worth,Texas 76134-2099 (US)	(72) Inventors: ROBINSON, Stephanie Fort Worth, TX 76133 (US) LEWELLEN, Kevin Arlington, TX 76018 (US) (74) Representative: Best, Michael, Dr. et al Lederer & KellerPatentanwältePrinzregentenstrasse 16 80538 München 80538 München (DE)