BOSTON (AP) — The Gillette Co. has opened a new front in the battle of the blades, filing a second patent infringement lawsuit against rival Schick-Wilkinson Sword.

The latest case, filed Dec. 5 in U.S. District Court in Boston, alleges Schick's Intuition women's razor infringes on two Gillette patents — one pertaining to the organizer, or tray the razor sits in, and a second pertaining to blade packaging.

In a previous lawsuit, Boston-based Gillette alleged Schick's new four-bladed Quattro razor also infringed on Gillette's patents. Gillette's request for a preliminary injunction blocking the sale of Quattro in that case is being considered by a judge.

"We vigorously defend our intellectual property," Gillette spokesman Eric Kraus said Tuesday.

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A spokesman for St. Louis-based Energizer Holdings, which owns Schick-Wilkinson Sword, did not immediately return a phone message seeking comment. The latest suit seeks unspecified damages.

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