Pfizer Loses Bid To Invalidate Bayer's Bovine Drug Patent

Law360, New York (September 19, 2012, 1:57 PM EDT) -- An Illinois federal judge on Tuesday blocked Pfizer Inc.'s bid to have Bayer Healthcare LLC's patent for a bovine respiratory disease drug declared invalid, finding Bayer's claims for a single, high-dose of the drug are not ambiguous.

Pfizer had argued that Bayer’s patent was too vague, saying the word “high” was a term of degree, and thus claiming a “high dose” of the drug fluoroquinolone raises the possibility of indefiniteness, according to the order.

However, U.S. District Judge Edmond E. Chang denied Pfizer’s move for summary...
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