News of the WeekIntellectual Property

Depth Charges Aimed at Columbia's 'Submarine Patent'

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Science  25 Jul 2003:
Vol. 301, Issue 5632, pp. 448
DOI: 10.1126/science.301.5632.448

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Columbia University has persuaded the U.S. Patent and Trademark Office to issue it two patents on the same invention. That, at least, is how five companies see it.