(19)
(11) EP 0 542 874 A1

(12)

(43) Date of publication:
26.05.1993 Bulletin 1993/21

(21) Application number: 91915255.0

(22) Date of filing: 17.07.1991
(51) International Patent Classification (IPC): 
C12N 15/ 09( . )
C12Q 1/ 68( . )
C12N 15/ 10( . )
(86) International application number:
PCT/US1991/005067
(87) International publication number:
WO 1992/001813 (06.02.1992 Gazette 1992/04)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30) Priority: 25.07.1990 US 19900558645

(71) Applicant: SYNGENE, INC.
San Diego, CA 92121-2789 (US)

(72) Inventors:
  • RUTH, Jerry, L,
    San Diego, CA 92131 (US)
  • DRIVER, David, A.
    San Diego, CA 92117 (US)

(74) Representative: Goldin, Douglas Michael, et al 
J.A. KEMP & CO. 14, South Square Gray's Inn
London WC1R 5LX
London WC1R 5LX (GB)

   


(54) CIRCULAR EXTENSION FOR GENERATING MULTIPLE NUCLEIC ACID COMPLEMENTS