(19)

(11)

EP 0 530 283 A1

(12)

(43) Date of publication: 10.03.1993 Bulletin 1993/10 (21) Application number: 91910180.0 (22) Date of filing: 15.05.1991

(51) International Patent Classification (IPC):  C12M 1/ 00( . ) C12N 15/ 09( . ) B01L 3/ 00( . ) C12Q 1/ 68( . ) (86) International application number: PCT/SE1991/000343 (87) International publication number: WO 1991/018110 (28.11.1991 Gazette 1991/27)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 16.05.1990 SE 19900001772 (71) Applicant: MALMQUIST, Mats S-754 39 Uppsala (SE)	(72) Inventor: MALMQUIST, Mats S-754 39 Uppsala (SE) (74) Representative: Svanfeldt, Hans-Ake, et al  DR. LUDWIG BRANN PATENTBYRA AB P.O. Box 1344 S-751 43 Uppsala S-751 43 Uppsala (SE)