(19)

(11)

EP 0 988 229 A2

(12)

(88) Date of publication A3: 15.04.1999 (43) Date of publication: 29.03.2000 Bulletin 2000/13 (21) Application number: 98929077.0 (22) Date of filing: 15.06.1998

(51) International Patent Classification (IPC)7: B64F 1/00 (86) International application number: PCT/US9812/421 (87) International publication number: WO 9857/851 (23.12.1998 Gazette 1998/51)

(84) Designated Contracting States: CH DE ES FR GB IE IT LI NL SE (30) Priority: 16.06.1997 US 49790 P 27.03.1998 US 79623 P 30.03.1998 US 79915 P (71) Applicant: Trustees of Dartmouth College Hanover, NH 03755 (US)	(72) Inventor: PETRENKO, Victor, F. Hanover, NH 03755 (US) (74) Representative: Bibby, William Mark et al Mathisen, Macara & Co.,The Coach House,6-8 Swakeleys Road IckenhamUxbridge UB10 8BZ IckenhamUxbridge UB10 8BZ (GB)