Wrigley, Cadbury Tussle Over Gum Patents In Fed. Circ.

By Christopher Norton (February 7, 2012, 4:25 PM EST) -- Wm. Wrigley Jr. Co. asked the Federal Circuit on Tuesday to undo a lower court's finding that part of its chewing gum flavoring patent was invalid, saying that only in retrospect can the patented combination of flavoring agents seem obvious....

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