(19)

(11)

EP 1 097 484 A1

(12)

(43) Date of publication: 09.05.2001 Bulletin 2001/19 (21) Application number: 98937730.4 (22) Date of filing: 08.06.1998

(51) International Patent Classification (IPC)7: H01L 41/08 (86) International application number: PCT/IB9801/321 (87) International publication number: WO 9965/088 (16.12.1999 Gazette 1999/50)

(84) Designated Contracting States: CH DE FR GB IT LI SE (71) Applicant: OCEANEERING INTERNATIONAL, INC. Houston, TX 77041 (US)	(72) Inventors: SAGER, Frank, E. Clear Lake Shores, TX 77565 (US) ROBERTSON, William, C. Houston, TX 77062 (US) MATICE, Christopher, J. Bellbrook, OH 45305 (US) (74) Representative: Ebner von Eschenbach, Jennifer et al c/o Ladas & Parry,Dachauerstrasse 37 80335 München 80335 München (DE)