Samsung Again Attacks Murata Patent

Scott Daniels | February 16, 2010

Samsung filed a request last Friday that the PTO conduct an ex parte reexamination of Murata’s U.S. Patent No. 6,377,439 which claims multi-layer ceramic capacitors.

In October, Murata sued Samsung at the U.S. ITC for importing into the United States ceramic capacitors that infringe the ‘439 patent, as well as three other patents belonging to Murata.  The ITC’s Judge Gildea has scheduled trial for July 2010, and set March 4, 2011 as the target date by which the ITC will complete its investigation.

Samsung requested on November 18, 2009, an inter partes reexamination of the ‘439 claims.  Last month, the PTO simultaneously granted reexamination and issued an Office Action rejecting each of the ‘439 claims.  A response by Murata to the Action is due March 21.

In December Samsung requested reexamination of two of the other three Murata patents in the ITC investigation.  The PTO will rule on those requests in March.

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