(19)

(11)

EP 0 782 704 A1

(12)

(43) Date of publication: 09.07.1997 Bulletin 1997/28 (21) Application number: 95930638.0 (22) Date of filing: 05.09.1995

(51) International Patent Classification (IPC):  G01N 33/ 50( . ) G01N 33/ 543( . ) G01N 33/ 553( . ) G01N 33/ 53( . ) G01N 33/ 547( . ) (86) International application number: PCT/GB1995/002094 (87) International publication number: WO 1996/007909 (14.03.1996 Gazette 1996/12)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: LT LV SI (30) Priority: 06.09.1994 GB 19940017864 (71) Applicant: SINVENT A/S N-7034 Trondheim (NO)	(72) Inventors: UGELSTAD, John N-7012 Trondheim (NO) STENSTAD, Per N-7024 Trondheim (NO) KILAAS, Lars N-7036 Trondheim (NO) BERGE, Arvid N-7034 Trondheim (NO) PRESTVIK, Wenche, Slettahjell N-7035 Trondheim (NO) (74) Representative: Dzieglewska, Hanna Eva  Frank B. Dehn & Co., European Patent Attorneys, 179 Queen Victoria Street London EC4V 4EL London EC4V 4EL (GB)