Kimberly-Clark Sues Tyco Over Trachea Tube Patent

Law360, New York (April 27, 2009, 12:00 AM EDT) -- Kimberly-Clark Worldwide Inc. has accused Tyco Healthcare Group LP of willfully infringing the retail goods giant's patent for a type of endotracheal tube designed to minimize infections that can lead to pneumonia in patients hooked up to ventilators.

The complaint — filed Monday in the U.S. District Court for the Eastern District of Wisconsin — alleges that the defendant's Mallinckrodt SealGuard and SealGuard Evac products infringe Kimberly-Clark's patent.

Kimberly-Clark was assigned U.S. Patent Number 6,526,977 — called "tracheal breathing apparatus" — from Dr. Fred Gobel Patentverwaltung...
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