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US007056658B2 (12) United States Patent (10) Patent No.: US 7,056,658 B2 Valenzuela et al. (45) Date of Patent: Jun. 6, 2006 (54) MULTIPLE EPITOPE FUSION PROTEIN 5,350,671 A 9/1994 Houghton et al. ............. 435/5 5,582,968 A 12/1996 Wang et al. ................... 435/5 (75) Inventors: Pablo D. T. Valenzuela, Berkeley, CA 5,639,594 A 6, 1997 Wang et al. ................... 435/5 S. David Ying Chien, Alamo, CA FOREIGN PATENT DOCUMENTS GB 2 294 047 4f1996 (73) Assignee: Chiron Corporation, Emeryville, CA JP 8-24045 10, 1997 (US) JP 9-278794 10, 1997 WO 92,08734 5, 1992 (*) Notice: Subject to any disclaimer, the term of this WO 93.00365 1, 1993 patent is extended or adjusted under 35 WO 93,0828O 4f1993 U.S.C. 154(b) by 822 days. (Continued) (21) Appl. No.: 10/174,652 OTHER PUBLICATIONS 1-1. Chien et al., “Use of Recombinant HCV Antigen in the (22) Filed: Jun. 17, 2002 Serodiagnosis of Hepatitis C Virus Infection: Significant (65) Prior Publication Data Improvement in HCV Antibody Detection as Compared with the First Generation HCV C100-3 ELISA and the US 2003/0044774 A1 Mar. 6, 2003 Synthetic Peptide EIA Test J. Gastroentrerology and Hepatology 8:S33-S-39, 1993. Related U.S. Application Data (63) Continuation of application No. 08/653,226, filed on (Continued) May 24, 1996, now Pat. No. 6,514,731. Primary Examiner J. S. Parkin (74) Attorney, Agent, or Firm Roberta L. Robins; Marcella (51) Int. Cl. ( ) Lillis; Alisa A. Harbin CI2O 1/70 2006.O1 GOIN 33/53 (2006.01) (57) ABSTRACT A639/29 (2006.01) (52) U.S.
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