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Science 8 June 2001:
Vol. 292. no. 5523, p. 1815
DOI: 10.1126/science.292.5523.1815a
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News of the Week

PCR:
Roche Dealt a Setback on European Taq Patent

Robert F. Service

On 30 May the European Patent Office revoked Swiss pharmaceutical giant Hoffmann-La Roche's patent on native Taq polymerase, a crucial element of the polymerase chain reaction, the ubiquitous technique used to amplify snippets of DNA. Roche officials say they will appeal the ruling. But this is a costly setback, because the company is already fighting to overturn related decisions in both the United States and Australia.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)