Kwikset Hits Master Lock With Patent Suit

Law360, New York (March 28, 2008, 12:00 AM EDT) -- Lock manufacturer Kwikset Corp. has taken its rival Master Lock to court, claiming infringement of its patent for a type of rekeyable lock.

Kwikset filed suit Wednesday in the U.S. District Court for the District of Delaware, alleging that Master Lock's “Recodable Door Hardware” line of products infringes one of Kwikset's patents.

At issue is U.S. Patent Number 6,973,813, titled “Rekeyable lock and method." It was issued in 2005 to Newfrey LLC, which is also a plaintiff, and is licensed exclusively to Kwikset.

Kwikset alleges that...
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